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Intel® PXA26x Processor Family
Developer’s Manual
March, 2003
Order Number: 278638-002
ii Intel® PXA26x Processor Family Developer’s Manual
Contents
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Intel® PXA26x Processor Family Developer’s Manual iii
Contents
Contents
1 Introduction...................................................................................................................................1-1
1.1 Intel® XScale™ Core Features .........................................................................................1-1
1.2 System Integration Features..............................................................................................1-2
1.2.1 Memory Controller ................................................................................................1-2
1.2.2 Clocks and Power Controllers...............................................................................1-2
1.2.3 Universal Serial Bus (USB) Client.........................................................................1-3
1.2.4 Direct Memory Access Controller (DMAC) ...........................................................1-3
1.2.5 Liquid Crystal Display (LCD) Controller................................................................1-3
1.2.6 AC97 Controller ....................................................................................................1-3
1.2.7 Inter-Integrated Circuit Sound (I2S) Controller.....................................................1-3
1.2.8 Multimedia Card (MMC) Controller.......................................................................1-4
1.2.9 Fast Infrared (FIR) Communication Port...............................................................1-4
1.2.10 Synchronous Serial Protocol Controller (SSPC)...................................................1-4
1.2.11 Inter-Integrated Circuit (I2C) Bus Interface Unit....................................................1-4
1.2.12 General Purpose Input/Output (GPIO) .................................................................1-4
1.2.13 Universal Asynchronous Receiver/Transmitters (UARTs)....................................1-4
1.2.14 Real-Time Clock (RTC).........................................................................................1-5
1.2.15 Operating System (OS) Timers.............................................................................1-5
1.2.16 Pulse-Width Modulator (PWM) .............................................................................1-5
1.2.17 Interrupt Controller................................................................................................1-5
1.2.18 Integrated Synchronous Flash..............................................................................1-5
1.2.19 Single-ended Universal Serial Bus Client interface ..............................................1-5
1.2.20 Network Synchronous Serial Protocol Port...........................................................1-6
1.2.21 Audio Synchronous Serial Protocol Port...............................................................1-6
1.2.22 Hardware UART (HWUART) ................................................................................1-6
2 System Architecture .....................................................................................................................2-1
2.1 Overview............................................................................................................................2-1
2.2 Package Types..................................................................................................................2-2
2.3 Intel® XScale™ Microarchitecture Implementation Options..............................................2-3
2.3.1 CPU Core Fault Register — PSFS Bit..................................................................2-3
2.3.2 Coprocessor 14 Registers 0-3 – Performance Monitoring....................................2-3
2.3.3 Coprocessor 14 Register 6 and 7– Clock and Power Management.....................2-4
2.3.4 Coprocessor 15 Register 0 – ID Register Definition.............................................2-4
2.3.5 Coprocessor 15 Register 1 – P-Bit.......................................................................2-5
2.4 Input/Output Ordering........................................................................................................2-5
2.5 Semaphores ......................................................................................................................2-6
2.6 Interrupts............................................................................................................................2-6
2.7 Reset .................................................................................................................................2-7
2.8 Internal Registers...............................................................................................................2-7
2.9 Selecting Peripherals vs. General Purpose Input/Output..................................................2-8
2.10 Power on Reset and Boot Operation.................................................................................2-8
2.11 Power Management...........................................................................................................2-8
2.12 Pin List...............................................................................................................................2-9
2.13 Register Address Summary.............................................................................................2-21
2.14 Memory Map....................................................................................................................2-33
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3 Clocks and Power Manager.........................................................................................................3-1
3.1 Clock Manager Introduction...............................................................................................3-1
3.2 Power Manager Introduction..............................................................................................3-2
3.3 Clock Manager...................................................................................................................3-2
3.3.1 32.768-KHz Oscillator...........................................................................................3-4
3.3.2 3.6864-MHz Oscillator..........................................................................................3-4
3.3.3 Core Phase Locked Loop.....................................................................................3-4
3.3.4 95.85-MHz Peripheral Phase Locked Loop..........................................................3-5
3.3.5 147.46-MHz Peripheral Phase Locked Loop........................................................3-6
3.3.6 Clock Gating.........................................................................................................3-6
3.4 Resets and Power Modes..................................................................................................3-6
3.4.1 Hardware Reset....................................................................................................3-7
3.4.2 Watchdog Reset...................................................................................................3-7
3.4.3 GPIO Reset ..........................................................................................................3-8
3.4.4 Run Mode.............................................................................................................3-9
3.4.5 Turbo Mode ..........................................................................................................3-9
3.4.6 Idle Mode............................................................................................................3-10
3.4.7 33-MHz Idle Mode ..............................................................................................3-12
3.4.8 Frequency Change Sequence............................................................................3-13
3.4.9 Sleep Mode.........................................................................................................3-15
3.4.10 Power Mode Summary.......................................................................................3-20
3.5 Power Manager Registers...............................................................................................3-22
3.5.1 Power Manager Control Register (PMCR) .........................................................3-23
3.5.2 Power Manager General Configuration Register (PCFR)...................................3-24
3.5.3 Power Manager Wake-Up Enable Register (PWER)..........................................3-25
3.5.4 Power Manager Rising-Edge Detect Enable Register (PRER)..........................3-26
3.5.5 Power Manager Falling-Edge Detect Enable Register (PFER)..........................3-27
3.5.6 Power Manager GPIO Edge Detect Status Register (PEDR).............................3-28
3.5.7 Power Manager Sleep Status Register (PSSR) .................................................3-29
3.5.8 Power Manager Scratch Pad Register (PSPR)..................................................3-30
3.5.9 Power Manager Fast Sleep Wake Up Configuration Register (PMFWR)...........3-31
3.5.10 Power Manager GPIO Sleep State Registers (PGSR0, PGSR1, PGSR2).........3-31
3.5.11 Reset Controller Status Register (RCSR)...........................................................3-33
3.5.12 Power Manager Register Locations....................................................................3-34
3.6 Clocks Manager Registers...............................................................................................3-35
3.6.1 Core Clock Configuration Register (CCCR) .......................................................3-35
3.6.2 Clock Enable Register (CKEN)...........................................................................3-37
3.6.3 Oscillator Configuration Register (OSCC)..........................................................3-39
3.6.4 Clocks Manager Register Locations...................................................................3-39
3.7 Coprocessor 14: Clock and Power Management............................................................3-40
3.7.1 Core Clock Configuration Register (CCLKCFG).................................................3-40
3.7.2 Power Mode Register (PWRMODE)...................................................................3-41
3.8 External Hardware Considerations..................................................................................3-41
3.8.1 Power-On-Reset Considerations........................................................................3-41
3.8.2 Driving the Crystal Pins from an External Clock Source.....................................3-41
3.8.3 Noise Coupling Between Driven Crystal Pins and a Crystal Oscillator...............3-42
4 System Integration Unit................................................................................................................4-1
4.1 General-Purpose Input/Output...........................................................................................4-1
4.1.1 GPIO Operation....................................................................................................4-1
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4.1.2 GPIO Alternate Functions.....................................................................................4-3
4.1.3 GPIO Register Definitions.....................................................................................4-7
4.1.4 GPIO Register Locations....................................................................................4-21
4.2 Interrupt Controller...........................................................................................................4-22
4.2.1 Interrupt Controller Operation.............................................................................4-23
4.2.2 Interrupt Controller Register Definitions..............................................................4-24
4.2.3 Interrupt Controller Register Locations...............................................................4-31
4.3 Real-Time Clock (RTC) ...................................................................................................4-32
4.3.1 Real-Time Clock Operation.................................................................................4-32
4.3.2 Real-Time Clock Register Definitions.................................................................4-32
4.3.3 Trim Procedure...................................................................................................4-35
4.3.4 Real-Time Clock Register Locations...................................................................4-38
4.4 Operating System Timer..................................................................................................4-38
4.4.1 Watchdog Timer Operation.................................................................................4-38
4.4.2 Operating System Timer Register Definitions.....................................................4-39
4.4.3 Operating System Timer Register Locations......................................................4-42
4.5 Pulse Width Modulator.....................................................................................................4-43
4.5.1 Pulse Width Modulator Operation.......................................................................4-43
4.5.2 Register Descriptions..........................................................................................4-44
4.5.3 Pulse Width Modulator Output Wave Example...................................................4-47
4.5.4 Register Summary..............................................................................................4-48
5 Direct Memory Access Controller.................................................................................................5-1
5.1 Direct Memory Access Description....................................................................................5-1
5.1.1 Direct Memory Access Controller Channels.........................................................5-2
5.1.2 Signal Descriptions...............................................................................................5-3
5.1.3 Direct Memory Access Channel Priority Scheme.................................................5-4
5.1.4 Direct Memory Access Descriptors.......................................................................5-6
5.1.5 Channel States .....................................................................................................5-9
5.1.6 Read and Write Order...........................................................................................5-9
5.1.7 Byte Transfer Order............................................................................................5-10
5.1.8 Trailing Bytes......................................................................................................5-11
5.2 Transferring Data.............................................................................................................5-11
5.2.1 Servicing Internal Peripherals.............................................................................5-12
5.2.2 Quick Reference for Direct Memory Access Programming................................5-13
5.2.3 Servicing Companion Chips and External Peripherals.......................................5-14
5.2.4 Memory-to-Memory Moves.................................................................................5-16
5.3 Direct Memory Access Controller Registers....................................................................5-17
5.3.1 DMA Interrupt Register.......................................................................................5-17
5.3.2 DMA Channel Control/Status Register...............................................................5-17
5.3.3 DMA Request to Channel Map Registers...........................................................5-19
5.3.4 DMA Descriptor Address Registers....................................................................5-20
5.3.5 DMA Source Address Registers.........................................................................5-21
5.3.6 DMA Target Address Registers..........................................................................5-22
5.3.7 DMA Command Registers..................................................................................5-23
5.4 Examples.........................................................................................................................5-25
5.5 Direct Memory Access Controller Registers Locations....................................................5-28
6 Memory Controller........................................................................................................................6-1
6.1 Overview............................................................................................................................6-1
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6.2 Functional Description.......................................................................................................6-2
6.2.1 SDRAM Interface Overview..................................................................................6-2
6.2.2 Static Memory Interface / Variable Latency I/O Interface.....................................6-3
6.2.3 16-Bit PC Card / Compact Flash Interface ...........................................................6-4
6.3 Memory System Examples................................................................................................6-4
6.4 Memory Accesses .............................................................................................................6-6
6.4.1 Reads and Writes.................................................................................................6-7
6.4.2 Aborts and Nonexistent Memory ..........................................................................6-7
6.5 Memory Configuration Registers.......................................................................................6-8
6.6 Synchronous DRAM Memory Interface.............................................................................6-9
6.6.1 SDRAM MDCNFG Register..................................................................................6-9
6.6.2 SDRAM Mode Register Set Configuration Register...........................................6-12
6.6.3 SDRAM MDREFR Register................................................................................6-14
6.6.4 SDRAM Memory Options ...................................................................................6-17
6.6.5 SDRAM Command Overview.............................................................................6-25
6.6.6 SDRAM Waveforms............................................................................................6-27
6.7 Synchronous Static Memory Interface.............................................................................6-30
6.7.1 Synchronous Static Memory Configuration Register..........................................6-30
6.7.2 Synchronous Static Memory Mode Register Set Configuration Register ...........6-36
6.7.3 Synchronous Static Memory Timing Diagrams...................................................6-37
6.7.4 Non-SDRAM Timing SXMEM Operation............................................................6-38
6.8 Asynchronous Static Memory..........................................................................................6-41
6.8.1 Static Memory Interface......................................................................................6-41
6.8.2 Asynchronous Static Memory Control Registers (MSC0 – 2).............................6-44
6.8.3 ROM Interface ....................................................................................................6-48
6.8.4 SRAM Interface Overview ..................................................................................6-51
6.8.5 Variable Latency I/O (VLIO) Interface Overview.................................................6-53
6.8.6 FLASH Memory Interface...................................................................................6-56
6.9 16-Bit PC Card/Compact Flash Interface ........................................................................6-57
6.9.1 Expansion Memory Timing Configuration Register ............................................6-58
6.9.2 Expansion Memory Configuration Register (MECR)..........................................6-61
6.9.3 16-Bit PC Card Overview....................................................................................6-61
6.9.4 External Logic for 16-Bit PC Card Implementation.............................................6-64
6.9.5 Expansion Card Interface Timing Diagrams and Parameters ............................6-67
6.10 Companion Chip Interface...............................................................................................6-68
6.10.1 Alternate Bus Master Mode................................................................................6-70
6.11 Options and Settings for Boot Memory............................................................................6-72
6.11.1 Alternate Booting................................................................................................6-72
6.11.2 Boot Time Defaults.............................................................................................6-72
6.11.3 Memory Interface Reset and Initialization...........................................................6-75
6.12 Hardware, Watchdog, or Sleep Reset Operation ............................................................6-76
6.13 General Purpose Input/Output Reset Procedure.............................................................6-78
7 Liquid Crystal Display Controller ..................................................................................................7-1
7.1 Overview............................................................................................................................7-1
7.1.1 Features................................................................................................................7-2
7.1.2 Pin Descriptions....................................................................................................7-4
7.2 Liquid Crystal Display Controller Operation.......................................................................7-4
7.2.1 Enabling the Controller.........................................................................................7-4
7.2.2 Disabling the Controller ........................................................................................7-5
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7.2.3 Resetting the Controller........................................................................................7-5
7.3 Detailed Module Descriptions............................................................................................7-5
7.3.1 Input FIFOs...........................................................................................................7-6
7.3.2 Lookup Palette......................................................................................................7-6
7.3.3 Temporal Modulated Energy Distribution (TMED) Dithering.................................7-6
7.3.4 Output FIFOs........................................................................................................7-9
7.3.5 Liquid Crystal Display Controller Pin Usage.........................................................7-9
7.3.6 Direct Memory Access........................................................................................7-10
7.4 Liquid Crystal Display External Palette and Frame Buffers.............................................7-11
7.4.1 External-Palette Buffer........................................................................................7-11
7.4.2 External-Frame Buffer ........................................................................................7-12
7.5 Functional Timing ............................................................................................................7-15
7.6 Liquid Crystal Display Register Descriptions...................................................................7-19
7.6.1 LCD Controller Control Register 0 (LCCR0).......................................................7-20
7.6.2 LCD Controller Control Register 1 (LCCR1).......................................................7-28
7.6.3 LCD Controller Control Register 2 (LCCR2).......................................................7-30
7.6.4 LCD Controller Control Register 3 (LCCR3).......................................................7-33
7.6.5 LCD Controller DMA...........................................................................................7-37
7.6.6 LCD DMA Frame Branch Registers (FBRx).......................................................7-41
7.6.7 LCD Controller Status Register (LCSR)..............................................................7-42
7.6.8 LCD Controller Interrupt ID Register (LIIDR)......................................................7-46
7.6.9 TMED RGB Seed Register.................................................................................7-46
7.6.10 TMED Control Register (TCR)............................................................................7-47
7.6.11 LCD Controller Register Summary.....................................................................7-49
8 Synchronous Serial Port Controller..............................................................................................8-1
8.1 Overview............................................................................................................................8-1
8.2 Signal Description..............................................................................................................8-1
8.2.1 External Interface to Synchronous Serial Peripherals..........................................8-1
8.3 Functional Description .......................................................................................................8-2
8.3.1 Data Transfer........................................................................................................8-2
8.4 Data Formats.....................................................................................................................8-2
8.4.1 Serial Data Formats for Transfer to/from Peripherals...........................................8-2
8.4.2 Parallel Data Formats for FIFO Storage...............................................................8-6
8.5 FIFO Operation and Data Transfers..................................................................................8-6
8.5.1 Using Programmed I/O Data Transfers ................................................................8-7
8.5.2 Using DMA Data Transfers...................................................................................8-7
8.6 Baud Rate Generation.......................................................................................................8-7
8.7 SSP Serial Port Registers..................................................................................................8-7
8.7.1 SSP Control Register 0 (SSCR0) .........................................................................8-8
8.7.2 SSP Control Register 1 (SSCR1) .......................................................................8-11
8.7.3 SSP Data Register (SSDR) ................................................................................8-15
8.7.4 SSP Status Register (SSSR)..............................................................................8-16
8.7.5 SSP Register Address Map................................................................................8-19
9 Inter-Integrated Circuit Bus Interface Unit ....................................................................................9-1
9.1 Overview............................................................................................................................9-1
9.2 Signal Description..............................................................................................................9-1
9.3 Functional Description .......................................................................................................9-1
9.3.1 Operational Blocks................................................................................................9-3
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9.3.2 Inter-Integrated Circuit Bus Interface Modes.......................................................9-3
9.3.3 Start and Stop Bus States ....................................................................................9-4
9.4 Inter-Integrated Circuit Bus Operation...............................................................................9-6
9.4.1 Serial Clock Line (SCL) Generation......................................................................9-7
9.4.2 Data and Addressing Management......................................................................9-7
9.4.3 Inter-Integrated Circuit Acknowledge....................................................................9-8
9.4.4 Arbitration .............................................................................................................9-9
9.4.5 Master Operations..............................................................................................9-11
9.4.6 Slave Operations................................................................................................9-15
9.4.7 General Call Address..........................................................................................9-16
9.5 Slave Mode Programming Examples ..............................................................................9-18
9.5.1 Initialize Unit .......................................................................................................9-18
9.5.2 Write n Bytes as a Slave.....................................................................................9-18
9.5.3 Read n Bytes as a Slave ....................................................................................9-19
9.6 Master Programming Examples ......................................................................................9-19
9.6.1 Initialize Unit .......................................................................................................9-19
9.6.2 Write 1 Byte as a Master ....................................................................................9-19
9.6.3 Read 1 Byte as a Master....................................................................................9-20
9.6.4 Write 2 Bytes and Repeated Start Read 1 Byte as a Master..............................9-20
9.6.5 Read 2 Bytes as a Master - Send STOP Using the Abort..................................9-21
9.7 Glitch Suppression Logic.................................................................................................9-22
9.8 Reset Conditions .............................................................................................................9-22
9.9 Register Definitions..........................................................................................................9-22
9.9.1 I2C Bus Monitor Register- IBMR ........................................................................9-22
9.9.2 I2C Data Buffer Register- IDBR..........................................................................9-23
9.9.3 I2C Control Register- ICR...................................................................................9-24
9.9.4 I2C Status Register.............................................................................................9-26
9.9.5 I2C Slave Address Register- ISAR.....................................................................9-28
10 Universal Asynchronous Receiver/Transmitter ..........................................................................10-1
10.1 Feature List......................................................................................................................10-1
10.2 Overview..........................................................................................................................10-2
10.2.1 Full Function UART ............................................................................................10-2
10.2.2 Bluetooth UART..................................................................................................10-2
10.2.3 Standard UART ..................................................................................................10-2
10.2.4 Compatibility with 16550.....................................................................................10-2
10.3 Signal Descriptions..........................................................................................................10-3
10.4 UART Operational Description ........................................................................................10-4
10.4.1 Reset ..................................................................................................................10-5
10.4.2 Internal Register Descriptions.............................................................................10-5
10.4.3 FIFO Interrupt Mode Operation ........................................................................10-21
10.4.4 FIFO Polled Mode Operation............................................................................10-22
10.4.5 DMA Requests..................................................................................................10-22
10.4.6 Slow Infrared Asynchronous Interface..............................................................10-23
10.5 Register Summary.........................................................................................................10-26
10.5.1 UART Register Differences ..............................................................................10-27
11 Fast Infrared Communication Port..............................................................................................11-1
11.1 Signal Description............................................................................................................11-1
11.2 Fast Infrared Communications Port Operation................................................................11-1
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11.2.1 Four-Position Pulse Modulation..........................................................................11-2
11.2.2 Frame Format.....................................................................................................11-3
11.2.3 Address Field......................................................................................................11-4
11.2.4 Control Field .......................................................................................................11-4
11.2.5 Data Field ...........................................................................................................11-4
11.2.6 CRC Field ...........................................................................................................11-4
11.2.7 Baud Rate Generation........................................................................................11-5
11.2.8 Receive Operation..............................................................................................11-5
11.2.9 Transmit Operation.............................................................................................11-6
11.2.10 Transmit and Receive FIFOs..............................................................................11-7
11.2.11 Trailing or Error Bytes in the Receive FIFO........................................................11-7
11.3 Fast Infrared Communications Port Register Descriptions..............................................11-8
11.3.1 FICP Control Register 0......................................................................................11-8
11.3.2 FICP Control Register 1....................................................................................11-10
11.3.3 FICP Control Register 2....................................................................................11-11
11.3.4 FICP Data Register...........................................................................................11-12
11.3.5 FICP Status Register 0.....................................................................................11-13
11.3.6 FICP Status Register 1.....................................................................................11-14
11.4 Fast Infrared Communications Port Register Locations ................................................11-16
12 Universal Serial Bus Device Controller.......................................................................................12-1
12.1 Universal Serial Bus Overview ........................................................................................12-1
12.2 Device Configuration .......................................................................................................12-2
12.3 Universal Serial Bus Protocol ..........................................................................................12-3
12.3.1 Signalling Levels.................................................................................................12-3
12.3.2 Bit Encoding........................................................................................................12-4
12.3.3 Field Formats......................................................................................................12-4
12.3.4 Packet Formats...................................................................................................12-5
12.3.5 Transaction Formats...........................................................................................12-7
12.3.6 UDC Device Requests........................................................................................12-8
12.3.7 Configuration ....................................................................................................12-10
12.4 UDC Hardware Connection...........................................................................................12-10
12.4.1 Self-Powered Device ........................................................................................12-10
12.4.2 Bus-Powered Devices ......................................................................................12-12
12.5 UDC Operation..............................................................................................................12-12
12.5.1 Case 1: EP0 Control Read ...............................................................................12-12
12.5.2 Case 2: EP0 Control Read with a Premature Status Stage..............................12-13
12.5.3 Case 3: EP0 Control Write With or Without a Premature Status Stage............12-14
12.5.4 Case 4: EP0 No Data Command......................................................................12-15
12.5.5 Case 5: EP1 Data Transmit (BULK-IN).............................................................12-15
12.5.6 Case 6: EP2 Data Receive (BULK-OUT)..........................................................12-16
12.5.7 Case 7: EP3 Data Transmit (ISOCHRONOUS-IN)...........................................12-17
12.5.8 Case 8: EP4 Data Receive (ISOCHRONOUS-OUT)........................................12-18
12.5.9 Case 9: EP5 Data Transmit (INTERRUPT-IN).................................................12-20
12.5.10 Case 10: RESET Interrupt................................................................................12-20
12.5.11 Case 11: SUSPEND Interrupt...........................................................................12-21
12.5.12 Case 12: RESUME Interrupt.............................................................................12-21
12.6 UDC Register Descriptions............................................................................................12-21
12.6.1 UDC Control Register.......................................................................................12-22
12.6.2 UDC Endpoint 0 Control/Status Register (UDCCS0)........................................12-24
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12.6.3 UDC Endpoint x Control/Status Register (UDCCSx), Where x is 1, 6, or 11....12-26
12.6.4 UDC Endpoint x Control/Status Register (UDCCSx), Where x is 2, 7, or 12....12-28
12.6.5 UDC Endpoint x Control/Status Register (UDCCSx), Where x is 3, 8, or 13....12-31
12.6.6 UDC Endpoint x Control/Status Register (UDCCSx), Where x is 4, 9, or 14....12-33
12.6.7 UDC Endpoint x Control/Status Register (UDCCSx), Where x is 5, 10, or 15..12-35
12.6.8 UDC Interrupt Control Register 0 (UICR0) .......................................................12-37
12.6.9 UDC Interrupt Control Register 1 (UICR1) .......................................................12-38
12.6.10 UDC Status/Interrupt Register 0 (USIR0).........................................................12-40
12.6.11 UDC Status/Interrupt Register 1 (USIR1).........................................................12-41
12.6.12 UDC Frame Number High Register (UFNHR)..................................................12-43
12.6.13 UDC Frame Number Low Register (UFNLR) ...................................................12-45
12.6.14 UDC Byte Count Register x (UBCRx), Where x is 2, 4, 7, 9, 12, or 14. ...........12-45
12.6.15 UDC Endpoint 0 Data Register (UDDR0).........................................................12-46
12.6.16 UDC Data Register x (UDDRx), Where x is 1, 6, or 11 ....................................12-47
12.6.17 UDC Data Register x (UDDRx), Where x is 2, 7, or 12 ....................................12-48
12.6.18 UDC Data Register x (UDDRx), Where x is 3, 8, or 13 ....................................12-48
12.6.19 UDC Data Register x (UDDRx), Where x is 4, 9, or 14 ....................................12-49
12.6.20 UDC Data Register x (UDDRx), Where x is 5, 10, or 15 ..................................12-49
12.6.21 UDC Register Locations...................................................................................12-50
13 AC97 Controller Unit...................................................................................................................13-1
13.1 Overview..........................................................................................................................13-1
13.2 Feature List......................................................................................................................13-1
13.3 Signal Description............................................................................................................13-2
13.3.1 Signal Configuration Steps.................................................................................13-2
13.3.2 Example AC-link.................................................................................................13-2
13.4 AC-link Digital Serial Interface Protocol...........................................................................13-3
13.4.1 AC-link Audio Output Frame (SDATA_OUT)......................................................13-4
13.4.2 AC-link Audio Input Frame (SDATA_IN).............................................................13-8
13.5 AC-link Low Power Mode ..............................................................................................13-12
13.5.1 Powering Down the AC-link..............................................................................13-12
13.5.2 Waking up the AC-link......................................................................................13-13
13.6 ACUNIT Operation.........................................................................................................13-14
13.6.1 Initialization.......................................................................................................13-15
13.6.2 Trailing bytes ....................................................................................................13-16
13.6.3 Operational Flow for Accessing Codec Registers ............................................13-16
13.7 Clocks and Sampling Frequencies................................................................................13-16
13.8 Functional Description...................................................................................................13-17
13.8.1 FIFOs................................................................................................................13-17
13.8.2 Interrupts...........................................................................................................13-18
13.8.3 Registers...........................................................................................................13-18
14 Inter-Integrated Circuit Sound Controller....................................................................................14-1
14.1 Overview..........................................................................................................................14-1
14.2 Signal Descriptions..........................................................................................................14-2
14.3 Controller Operation........................................................................................................14-3
14.3.1 Initialization.........................................................................................................14-3
14.3.2 Disabling and Enabling Audio Replay.................................................................14-4
14.3.3 Disabling and Enabling Audio Record................................................................14-4
14.3.4 Transmit FIFO Errors..........................................................................................14-5
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14.3.5 Receive FIFO Errors...........................................................................................14-5
14.3.6 Trailing Bytes......................................................................................................14-5
14.4 Serial Audio Clocks and Sampling Frequencies..............................................................14-5
14.5 Data Formats...................................................................................................................14-6
14.5.1 FIFO and Memory Format..................................................................................14-6
14.5.2 I2S and MSB-Justified Serial Audio Formats......................................................14-6
14.6 I
2
S Controller Register Descriptions................................................................................14-7
14.6.1 Serial Audio Controller Global Control Register (SACR0)..................................14-8
14.6.2 Serial Audio Controller I2S/MSB-Justified Control Register (SACR1)..............14-10
14.6.3 Serial Audio Controller I2S/MSB-Justified Status Register (SASR0)................14-11
14.6.4 Serial Audio Clock Divider Register (SADIV)....................................................14-13
14.6.5 Serial Audio Interrupt Clear Register (SAICR)..................................................14-13
14.6.6 Serial Audio Interrupt Mask Register (SAIMR) .................................................14-14
14.6.7 Serial Audio Data Register (SADR)..................................................................14-14
14.6.8 Controller: Register Memory Map.....................................................................14-15
14.7 Interrupts........................................................................................................................14-16
15 MultiMediaCard Controller..........................................................................................................15-1
15.1 Overview..........................................................................................................................15-1
15.2 MultiMediaCard Controller Functional Description ..........................................................15-4
15.2.1 Signal Description...............................................................................................15-4
15.2.2 MultiMediaCard Controller Reset........................................................................15-5
15.2.3 Card Initialization Sequence...............................................................................15-5
15.2.4 MMC and SPI Modes..........................................................................................15-5
15.2.5 Error Detection....................................................................................................15-7
15.2.6 Interrupts.............................................................................................................15-7
15.2.7 Clock Control ......................................................................................................15-7
15.2.8 Data FIFOs.........................................................................................................15-8
15.3 Card Communication Protocol.......................................................................................15-11
15.3.1 Basic, No Data, Command and Response Sequence......................................15-11
15.3.2 Data Transfer....................................................................................................15-12
15.3.3 Busy Sequence.................................................................................................15-15
15.3.4 SPI Functionality...............................................................................................15-15
15.4 MultiMediaCard Controller Operation............................................................................15-15
15.4.1 Start and Stop Clock.........................................................................................15-16
15.4.2 Initialize.............................................................................................................15-16
15.4.3 Enabling SPI Mode...........................................................................................15-16
15.4.4 No Data Command and Response Sequence..................................................15-16
15.4.5 Erase ................................................................................................................15-17
15.4.6 Single Data Block Write....................................................................................15-17
15.4.7 Single Block Read ............................................................................................15-18
15.4.8 Multiple Block Write..........................................................................................15-18
15.4.9 Multiple Block Read..........................................................................................15-19
15.4.10 Stream Write.....................................................................................................15-19
15.4.11 Stream Read.....................................................................................................15-20
15.5 MultiMediaCard Controller Register Descriptions..........................................................15-21
15.5.1 MMC_STRPCL Register...................................................................................15-21
15.5.2 MMC_STAT Register........................................................................................15-22
15.5.3 MMC_CLKRT Register.....................................................................................15-23
15.5.4 MMC_SPI Register...........................................................................................15-24
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15.5.5 MMC_CMDAT Register....................................................................................15-25
15.5.6 MMC_RESTO Register ....................................................................................15-26
15.5.7 MMC_RDTO Register.......................................................................................15-27
15.5.8 MMC_BLKLEN Register...................................................................................15-28
15.5.9 MMC_NOB Register.........................................................................................15-28
15.5.10 MMC_PRTBUF Register ..................................................................................15-28
15.5.11 MMC_I_MASK Register....................................................................................15-29
15.5.12 MMC_I_REG Register......................................................................................15-30
15.5.13 MMC_CMD Register.........................................................................................15-31
15.5.14 MMC_ARGH Register ......................................................................................15-34
15.5.15 MMC_ARGL Register.......................................................................................15-34
15.5.16 MMC_RES FIFO (read only) ............................................................................15-35
15.5.17 MMC_RXFIFO FIFO (read only).......................................................................15-35
15.5.18 MMC_TXFIFO FIFO.........................................................................................15-35
16 Network/Audio Synchronous Serial Protocol Serial Ports..........................................................16-1
16.1 Overview..........................................................................................................................16-1
16.2 Features...........................................................................................................................16-1
16.3 Signal Description............................................................................................................16-2
16.4 Operation.........................................................................................................................16-2
16.4.1 Processor and DMA FIFO Access......................................................................16-3
16.4.2 Trailing Bytes in the Receive FIFO.....................................................................16-3
16.4.3 Data Formats......................................................................................................16-4
16.4.4 Hi-Z on SSPTXD...............................................................................................16-13
16.4.5 FIFO Operation.................................................................................................16-17
16.4.6 Baud-Rate Generation......................................................................................16-17
16.5 SSP Port Register Descriptions.....................................................................................16-18
16.5.1 SSP Control Register 0 (SSCR0).....................................................................16-18
16.5.2 SSP Control Register 1 (SSCR1).....................................................................16-21
16.5.3 SSP Programmable Serial Protocol Register (SSPSP)....................................16-27
16.5.4 SSP Time Out Register (SSTO).......................................................................16-28
16.5.5 SSP Interrupt Test Register (SSITR)................................................................16-29
16.5.6 SSP Status Register (SSSR)............................................................................16-30
16.5.7 SSP Data Register (SSDR)..............................................................................16-34
16.6 Register Summary.........................................................................................................16-34
17 Hardware UART.........................................................................................................................17-1
17.1 Overview..........................................................................................................................17-1
17.2 Features...........................................................................................................................17-2
17.3 Signal Descriptions..........................................................................................................17-3
17.4 Operation.........................................................................................................................17-3
17.4.1 Reset ..................................................................................................................17-5
17.4.2 FIFO Operation...................................................................................................17-5
17.4.3 Autoflow Control .................................................................................................17-7
17.4.4 Auto-Baud-Rate Detection..................................................................................17-8
17.4.5 Slow Infrared Asynchronous Interface................................................................17-8
17.5 Hardware UART Register Descriptions.........................................................................17-10
17.5.1 Receive Buffer Register (RBR).........................................................................17-10
17.5.2 Transmit Holding Register (THR) .....................................................................17-11
17.5.3 Divisor Latch Registers (DLL and DLH)............................................................17-11
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17.5.4 Interrupt Enable Register (IER) ........................................................................17-13
17.5.5 Interrupt Identification Register (IIR).................................................................17-14
17.5.6 FIFO Control Register (FCR)............................................................................17-17
17.5.7 Receive FIFO Occupancy Register (FOR) .......................................................17-18
17.5.8 Auto-Baud Control Register (ABR)...................................................................17-19
17.5.9 Auto-Baud Count Register (ACR).....................................................................17-20
17.5.10 Line Control Register (LCR)..............................................................................17-21
17.5.11 Line Status Register (LSR)...............................................................................17-23
17.5.12 Modem Control Register (MCR).......................................................................17-26
17.5.13 Modem Status Register (MSR).........................................................................17-28
17.5.14 Scratchpad Register (SPR) ..............................................................................17-29
17.5.15 Infrared Selection Register (ISR)......................................................................17-30
17.6 Hardware UART Register Summary..............................................................................17-31
18 Internal Flash..............................................................................................................................18-1
18.1 Initialization......................................................................................................................18-1
18.1.1 Intel StrataFlash® Memory Reset Configuration ................................................18-1
18.1.2 BOOT_SEL[2:0] Configuration ...........................................................................18-2
18.1.3 Determining the Size and Configuration of Flash Using Software......................18-2
18.1.4 SXCNFG Configuration ......................................................................................18-2
18.1.5 Configuring the Intel StrataFlash® Memory........................................................18-3
18.2 Additional Intel StrataFlash® Memory Information..........................................................18-6
Figures
2-1 Block Diagram ...........................................................................................................................2-2
2-2 Memory Map (Part One) — From 0x8000 0000 to 0xFFFF FFFF...........................................2-34
2-3 Memory Map (Part Two) — From 0x0000 0000 to 0x7FFF FFFF...........................................2-35
3-1 Clocks Manager Block Diagram ................................................................................................3-3
4-1 General-Purpose I/O Block Diagram .........................................................................................4-2
4-2 Interrupt Controller Block Diagram ..........................................................................................4-24
4-3 PWMn Block Diagram..............................................................................................................4-43
4-4 Basic Pulse Width Waveform ..................................................................................................4-47
5-1 DMAC Block Diagram................................................................................................................5-2
5-2 DREQ timing requirements........................................................................................................5-3
5-3 No-Descriptor Fetch Mode Channel State.................................................................................5-7
5-4 Descriptor Fetch Mode Channel State.......................................................................................5-8
5-5 Little Endian Transfers.............................................................................................................5-10
6-1 General Memory Interface Configuration...................................................................................6-2
6-2 SDRAM Memory System Example............................................................................................6-5
6-3 Asynchronous Static Memory System Example........................................................................6-6
6-4 External to Internal Address Mapping Options........................................................................6-19
6-5 SDRAM Read..........................................................................................................................6-27
6-6 SDRAM Read With a Second Read to Same Bank, Same Row.............................................6-27
6-7 SDRAM Read With a Second Read to Same Bank, Different Row.........................................6-28
6-8 SDRAM Read With a Second Read to a Different Bank .........................................................6-28
6-9 SDRAM Write..........................................................................................................................6-29
6-10 SDRAM Write With a Second Write to Same Bank, Same Row .............................................6-29
6-11 SMROM Read Timing Diagram Half-Memory Clock Frequency, ............................................6-38
6-12 Burst-of-Eight Synchronous Flash Timing Diagram (non-divide-by-2 mode) ..........................6-40
6-13 MSC0/1/2 Register Bitmap......................................................................................................6-44
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6-14 32-Bit Burst-of-Eight ROM or Flash Read Timing Diagram (MSC0:RDF = 4,
MSC0:RDN = 1, MSC0:RRR = 1)............................................................................................6-49
6-15 Eight-Beat Burst Read from 16-Bit Burst-of-Four ROM or Flash (MSC0:RDF = 4,
MSC0:RDN = 1, MSC0:RRR = 0)............................................................................................6-50
6-16 32-Bit Non-burst ROM, SRAM, or Flash Read Timing Diagram - Four Data Beats
(MSC0:RDF = 4, MSC0:RRR = 1)...........................................................................................6-51
6-17 32-Bit SRAM Write Timing Diagram (4-beat Burst) (MSC0:RDN = 2, MSC0:RRR = 1)..........6-52
6-18 32-Bit Variable Latency I/O Read Timing (Burst-of-Four, One Wait Cycle Per Beat)
(MSC0:RDF = 2, MSC0:RDN = 2, MSC0:RRR = 1) ...............................................................6-54
6-19 32-Bit Variable Latency I/O Write Timing (Burst-of-Four, Variable Wait Cycles Per Beat)......6-55
6-20 Asynchronous 32-Bit Flash Write Timing Diagram (2 Writes).................................................6-57
6-21 MCMEM1 Register Bitmap......................................................................................................6-58
6-22 MCATT1 Register Bitmap........................................................................................................6-58
6-23 MCIO1 Register Bitmap...........................................................................................................6-59
6-24 16-Bit PC Card Memory Map ..................................................................................................6-62
6-25 Expansion Card External Logic for a One-Socket Configuration.............................................6-65
6-26 Expansion Card External Logic for a Two-Socket Configuration.............................................6-66
6-27 16-Bit PC Card Memory or I/O 16-Bit (Half-word) Access.......................................................6-67
6-28 16-Bit PC Card I/O 16-Bit Access to 8-Bit Device ...................................................................6-68
6-29 Alternate Bus Master Mode.....................................................................................................6-69
6-30 Variable Latency IO.................................................................................................................6-69
6-31 Asynchronous Boot Time Configurations and Register Defaults.............................................6-73
6-32 SMROM Boot Time Configurations and Register Defaults......................................................6-74
6-33 SMROM Boot Time Configurations and Register Defaults (Continued)..................................6-75
7-1 LCD Controller Block Diagram ..................................................................................................7-3
7-2 Temporal Dithering Concept - Single Color...............................................................................7-7
7-3 Compare Range for TMED........................................................................................................7-7
7-4 TMED Block Diagram...............................................................................................................7-8
7-5 Palette-Buffer Format..............................................................................................................7-12
7-6 1-Bit Per Pixel Data Memory Organization..............................................................................7-12
7-8 4-Bits Per Pixel Data Memory Organization............................................................................7-13
7-9 8-Bits Per Pixel Data Memory Organization............................................................................7-13
7-10 16-Bits Per Pixel Data Memory Organization – Passive Mode ...............................................7-13
7-7 2-Bits Per Pixel Data Memory Organization............................................................................7-13
7-11 16-Bits Per Pixel Data Memory Organization – Active Mode..................................................7-14
7-12 Passive Mode Start-of-Frame Timing......................................................................................7-16
7-13 Passive Mode End-of-Frame Timing.......................................................................................7-17
7-14 Passive Mode Pixel Clock and Data Pin Timing......................................................................7-17
7-15 Active Mode Timing.................................................................................................................7-18
7-16 Active Mode Pixel Clock and Data Pin Timing ........................................................................7-19
7-17 Frame Buffer/Palette Output to LCD Data Pins in Active Mode ..............................................7-25
7-18 LCD Data-Pin Pixel Ordering...................................................................................................7-27
8-1 Texas Instruments’ Synchronous Serial Frame* Format...........................................................8-4
8-2 Motorola SPI* Frame Format.....................................................................................................8-5
8-3 National Microwire* Frame Format............................................................................................8-6
8-4 Motorola SPI* Frame Formats for SPO and SPH Programming.............................................8-14
9-1 I
2
C Bus Configuration Example................................................................................................9-2
9-2 Start and Stop Conditions..........................................................................................................9-5
9-3 START and STOP Conditions...................................................................................................9-6
9-4 Data Format of First Byte in Master Transaction.......................................................................9-8
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9-5 Acknowledge on the I2C Bus.....................................................................................................9-8
9-6 Clock Synchronization During the Arbitration Procedure.........................................................9-10
9-7 Arbitration Procedure of Two Masters.....................................................................................9-10
9-8 Master-Receiver Read from Slave-Transmitter.......................................................................9-14
9-9 Master-Receiver Read from Slave-Transmitter / Repeated Start / Master-Transmitter
Write to Slave-Receiver...........................................................................................................9-14
9-10 A Complete Data Transfer.......................................................................................................9-14
9-11 Master-Transmitter Write to Slave-Receiver............................................................................9-16
9-12 Master-Receiver Read to Slave-Transmitter ...........................................................................9-16
9-13 Master-Receiver Read to Slave-Transmitter, Repeated START, Master-Transmitter
Write to Slave-Receiver...........................................................................................................9-16
9-14 General Call Address...............................................................................................................9-17
10-1 Example UART Data Frame....................................................................................................10-4
10-2 Example NRZ Bit Encoding (0b0100 1011).............................................................................10-5
10-3 IR Transmit and Receive Example........................................................................................10-25
10-4 XMODE Example...................................................................................................................10-25
11-1 4PPM Modulation Encodings...................................................................................................11-2
11-2 4PPM Modulation Example .....................................................................................................11-3
11-3 Frame Format for IrDA Transmission (4.0 Mbps)....................................................................11-3
12-1 NRZI Bit Encoding Example....................................................................................................12-4
12-2 Self-Powered Device.............................................................................................................12-11
13-1 Data Transfer Through the AC-link..........................................................................................13-3
13-2 AC97 Standard Bidirectional Audio Frame..............................................................................13-4
13-3 AC-link Audio Output Frame....................................................................................................13-5
13-4 Start of Audio Output Frame....................................................................................................13-5
13-5 AC97 Input Frame ...................................................................................................................13-9
13-6 Start of an Audio Input Frame..................................................................................................13-9
13-7 AC-link Powerdown Timing....................................................................................................13-12
13-8 SDATA_IN Wake Up Signaling..............................................................................................13-13
13-9 PCM Transmit and Receive Operation..................................................................................13-27
13-10 Mic-in Receive-Only Operation..............................................................................................13-29
13-11 Modem Transmit and Receive Operation..............................................................................13-32
14-1 I2S Data Formats (16 bits).......................................................................................................14-7
14-2 MSB-Justified Data Formats (16 bits)......................................................................................14-7
14-3 Transmit and Receive FIFO Accesses Through the SADR...................................................14-15
15-1 MMC System Interaction .........................................................................................................15-1
15-2 MMC Mode Operation Without Data Token.............................................................................15-3
15-3 MMC Mode Operation With Data Token..................................................................................15-3
15-4 SPI Mode Operation Without Data Token ...............................................................................15-3
15-5 SPI Mode Read Operation.......................................................................................................15-4
15-6 SPI Mode Write Operation.......................................................................................................15-4
16-1 Texas Instruments Synchronous Serial Frame* Protocol (multiple transfers).........................16-6
16-2 Texas Instruments Synchronous Serial Frame* Protocol (single transfers)............................16-6
16-3 Motorola SPI* Frame Protocol (multiple transfers)..................................................................16-7
16-4 Motorola SPI* Frame Protocol (single transfers).....................................................................16-7
16-5 Motorola SPI* Frame Protocols for SPO and SPH Programming (multiple transfers).............16-8
16-6 Motorola SPI* Frame Protocols for SPO and SPH Programming (single transfers)................16-9
16-7 National Semiconductor Microwire* Frame Protocol (multiple transfers) ..............................16-10
16-8 National Semiconductor Microwire* Frame Protocol (single transfers) .................................16-10
16-9 Programmable Serial Protocol (multiple transfers)................................................................16-11
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16-10 Programmable Serial Protocol (single transfers)...................................................................16-12
16-11 TI SSP with SSCR[TTE]=1 and SSCR[TTELP]=0.................................................................16-13
16-12 TI SSP with SSCR[TTE]=1 and SSCR[TTELP]=1.................................................................16-14
16-13 Motorola SPI with SSCR[TTE]=1...........................................................................................16-14
16-14 National Semiconductor Microwire with SSCR1[TTE]=1.......................................................16-15
16-15 PSP mode with SSCR1[TTE]=1 and SSCR1[TTELP]=0 (slave to frame).............................16-15
16-16 PSP mode with SSCR1[TTE]=1 and SSCR1[TTELP]=0 (master to frame)..........................16-16
16-17 PSP mode with SSCR1[TTE]=1 and SSCR1[TTELP]=1 (must be slave to frame)...............16-16
17-1 Example UART Data Frame....................................................................................................17-4
17-2 Example NRZ Bit Encoding (0b0100 1011).............................................................................17-4
17-3 IR Transmit and Receive Example..........................................................................................17-9
17-4 XMODE Example. .................................................................................................................17-10
18-1 Flash Memory Reset Using State Machine.............................................................................18-1
18-2 Flash Memory Reset Logic if Watchdog Reset is Not Necessary...........................................18-2
Tables
2-1 CPU Core Fault Register Bitmap...............................................................................................2-3
2-2 ID Register Bitmap and Bit Definitions (Read-only)...................................................................2-4
2-3 PXA26x processor family ID Values..........................................................................................2-5
2-4 Effect of Each Type of Reset on Internal Register State ..........................................................2-7
2-5 Processor Pin Types ................................................................................................................2-9
2-6 Pin & Signal Descriptions for the PXA26x Processor Family....................................................2-9
2-7 Pin Description Notes..............................................................................................................2-21
2-8 Register Address Summary.....................................................................................................2-21
3-1 Core PLL Output Frequencies for 3.6864-MHz Crystal.............................................................3-5
3-2 95.85-MHz Peripheral PLL Output Frequencies for 3.6864-MHz Crystal..................................3-5
3-3 147.46-MHz Peripheral PLL Output Frequencies for 3.6864-MHz Crystal................................3-6
3-4 Power Mode Entry Sequence Table.......................................................................................3-20
3-5 Power Mode Exit Sequence Table.........................................................................................3-21
3-6 Power and Clock Supply Sources and States During Power Modes .....................................3-22
3-7 PMCR Bit Definitions...............................................................................................................3-23
3-8 PCFR Bit Definitions................................................................................................................3-24
3-9 PWER Bit Definitions...............................................................................................................3-25
3-10 PRER Bit Definitions................................................................................................................3-26
3-11 PFER Bit Definitions................................................................................................................3-27
3-12 PEDR Bit Definitions................................................................................................................3-28
3-13 PSSR Bit Definitions................................................................................................................3-29
3-14 PSPR Bit Definitions................................................................................................................3-30
3-15 PMFWR Register Bitmap and Bit Definitions ..........................................................................3-31
3-16 PGSR0 Bit Definitions .............................................................................................................3-32
3-17 PGSR1 Bit Definitions .............................................................................................................3-32
3-18 PSPR Bit Definitions................................................................................................................3-32
3-19 RCSR Bit Definitions ...............................................................................................................3-34
3-20 Power Manager Register Locations ........................................................................................3-34
3-21 CCCR Register Bitmap and Bit Definitions..............................................................................3-36
3-22 CKEN Register Bitmap and Bit Definitions..............................................................................3-37
3-23 OSCC Bit Definitions...............................................................................................................3-39
3-24 Clocks Manager Register Locations........................................................................................3-39
3-25 Coprocessor 14 Clock and Power Management Summary.....................................................3-40
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3-26 CCLKCFG Bit Definitions.........................................................................................................3-40
3-27 PWRMODE Bit Definitions.......................................................................................................3-41
4-1 GPIO Alternate Functions..........................................................................................................4-3
4-2 GPIO Register Definitions..........................................................................................................4-7
4-3 GPLR0 Bit Definitions................................................................................................................4-8
4-4 GPLR1 Bit Definitions................................................................................................................4-9
4-5 GPLR2 Register Bitmap ............................................................................................................4-9
4-6 GPDR0 Bit Definitions .............................................................................................................4-10
4-7 GPDR1 Bit Definitions .............................................................................................................4-10
4-8 GPDR2 Register Bitmap..........................................................................................................4-10
4-9 GPSR0 Bit Definitions..............................................................................................................4-11
4-10 GPSR1 Bit Definitions..............................................................................................................4-11
4-11 GPSR2 Register Bitmap..........................................................................................................4-12
4-12 GPCR0 Bit Definitions .............................................................................................................4-12
4-13 GPCR1 Bit Definitions .............................................................................................................4-12
4-14 GPCR2 Register Bitmap..........................................................................................................4-13
4-15 GRER0 Bit Definitions .............................................................................................................4-14
4-16 GRER1 Bit Definitions .............................................................................................................4-14
4-17 GRER2 Register Bitmap..........................................................................................................4-14
4-18 GFER0 Bit Definitions..............................................................................................................4-15
4-19 GFER1 Bit Definitions..............................................................................................................4-15
4-20 GFER2 Register Bitmap..........................................................................................................4-15
4-21 GEDR0 Bit Definitions .............................................................................................................4-16
4-22 GEDR1 Bit Definitions .............................................................................................................4-17
4-23 GEDR2 Register Bitmap..........................................................................................................4-17
4-24 GAFR0_L Bit Definitions..........................................................................................................4-18
4-25 GAFR0_U Bit Definitions.........................................................................................................4-18
4-26 GAFR1_L Bit Definitions..........................................................................................................4-19
4-27 GAFR1_U Bit Definitions.........................................................................................................4-19
4-28 GAFR2_L Bit Definitions..........................................................................................................4-20
4-29 GAFR2_U Register Bitmap......................................................................................................4-20
4-30 GPIO Register Addresses.......................................................................................................4-21
4-31 ICMR Register Bitmap.............................................................................................................4-25
4-32 ICLR Register Bitmap..............................................................................................................4-25
4-33 ICCR Bit Definitions.................................................................................................................4-26
4-34 ICIP Register Bitmap...............................................................................................................4-27
4-35 ICFP Register Bitmap..............................................................................................................4-27
4-36 ICPR Register Bitmap..............................................................................................................4-28
4-37 List of First–Level Interrupts ....................................................................................................4-30
4-38 Interrupt Controller Register Addresses ..................................................................................4-31
4-39 RTTR Bit Definitions................................................................................................................4-33
4-40 RTAR Bit Definitions................................................................................................................4-34
4-41 RCNR Bit Definitions ...............................................................................................................4-34
4-42 RTSR Bit Definitions................................................................................................................4-35
4-43 RTC Register Addresses.........................................................................................................4-38
4-44 OSMR[x] Bit Definitions...........................................................................................................4-39
4-45 OIER Bit Definitions.................................................................................................................4-40
4-46 OWER Bit Definitions...............................................................................................................4-40
4-47 OSCR Bit Definitions ...............................................................................................................4-41
4-48 OSSR Bit Definitions................................................................................................................4-42
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4-49 OS Timer Register Locations ..................................................................................................4-42
4-50 PWM_CTRLn Bit Definitions ...................................................................................................4-45
4-51 PWM_DUTYn Bit Definitions...................................................................................................4-46
4-52 PWM_PERVALn Bit Definitions...............................................................................................4-47
4-53 PWM Register Locations.........................................................................................................4-48
5-1 DMAC Signal List ......................................................................................................................5-3
5-2 Channel Priority (if all channels are running concurrently)........................................................5-5
5-3 Channel Priority.........................................................................................................................5-5
5-4 Priority Schemes Examples.......................................................................................................5-5
5-5 DMA Quick Reference for Internal Peripherals .......................................................................5-13
5-6 DINT Register Bitmap and Bit Definitions................................................................................5-17
5-7 DMA Channel Control/Status Register Bitmap and Bit Definitions..........................................5-18
5-8 DRCMRx Registers Bitmap Bit Definitions..............................................................................5-20
5-9 DMA Descriptor Address Register Bit Definitions....................................................................5-21
5-10 DSADRx Register Bitmap Bit Definitions.................................................................................5-22
5-11 DTADRx Register Bitmap Bit Definitions.................................................................................5-23
5-12 DCMDx Register Bitmap and Bit Definitions ...........................................................................5-24
5-13 DMA Controller Registers........................................................................................................5-28
6-1 Device Transactions..................................................................................................................6-7
6-2 Memory Interface Control Registers..........................................................................................6-8
6-3 MDCNFG Register Bitmap and Bit Definitions..........................................................................6-9
6-4 MDMRS Register Bitmap ........................................................................................................6-12
6-5 MDMRSLP Register Bit Definitions .........................................................................................6-14
6-6 MDREFR Register Bitmap.......................................................................................................6-15
6-7 Sample SDRAM Memory Size Options...................................................................................6-18
6-8 External to Internal Address Mapping for Normal Bank Addressing .......................................6-19
6-9 External to Internal Address Mapping for SA-1111 Addressing..............................................6-21
6-10 Pin Mapping to SDRAM Devices with Normal Bank Addressing.............................................6-22
6-11 Pin Mapping to SDRAM Devices with SA-1111 Addressing ...................................................6-24
6-12 SDRAM Command Encoding..................................................................................................6-26
6-13 SDRAM Mode Register Opcode Table....................................................................................6-26
6-14 SXCNFG Register Bitmap.......................................................................................................6-30
6-15 SXCNFG Register Bitmap.......................................................................................................6-35
6-16 Synchronous Static Memory External to Internal Address Mapping Options..........................6-35
6-17 SXMRS Register Bitmap.........................................................................................................6-36
6-18 Read Configuration Register Programming Values.................................................................6-39
6-19 Frequency Code Configuration Values Based on Clock Speed..............................................6-39
6-20 32-Bit Bus Write Access..........................................................................................................6-41
6-21 16-Bit Bus Write Access..........................................................................................................6-42
6-22 32-Bit Byte Address Bits MA[1:0] for Reads Based on DQM[3:0]...........................................6-43
6-23 16-Bit Byte Address Bit MA[0] for Reads Based on DQM[1:0]................................................6-43
6-24 SA-1111 Register Bit Definitions.............................................................................................6-43
6-25 MSC0/1/2 Register Bit Definitions ...........................................................................................6-45
6-26 Asynchronous Static Memory and Variable Latency I/O Capabilities......................................6-47
6-27 MCMEMx Register Bitmap......................................................................................................6-58
6-28 MCATTx Register Bitmap........................................................................................................6-58
6-29 MCIOx Register Bitmap...........................................................................................................6-59
6-30 Card Interface Command Assertion Code Table.....................................................................6-59
6-31 MECR Configuration Register Bitmap.....................................................................................6-61
6-32 Common Memory Space Write Commands............................................................................6-63
Intel® PXA26x Processor Family Developer’s Manual xix
Contents
6-33 Common Memory Space Read Commands............................................................................6-63
6-34 Attribute Memory Space Write Commands .............................................................................6-63
6-35 Attribute Memory Space Read Commands.............................................................................6-63
6-36 16-Bit I/O Space Write Commands (nIOIS16 = 0)...................................................................6-63
6-37 16-Bit I/O Space Read Commands (nIOIS16 = 0)...................................................................6-63
6-38 8-Bit I/O Space Write Commands (nIOIS16 = 1).....................................................................6-64
6-39 8-Bit I/O Space Read Commands (nIOIS16 = 1).....................................................................6-64
6-40 BOOT_DEF Register Bitmap...................................................................................................6-72
6-41 Memory Controller Pin Reset Values.......................................................................................6-76
7-1 Pin Descriptions.........................................................................................................................7-4
7-2 LCD Controller Control Register 0...........................................................................................7-20
7-3 LCD Controller Data Pin Utilization..........................................................................................7-26
7-4 LCD Controller Control Register 1...........................................................................................7-28
7-5 LCD Controller Control Register 2...........................................................................................7-31
7-6 LCD Controller Control Register 3...........................................................................................7-33
7-7 LCD DMA Frame Descriptor Address Registers .....................................................................7-38
7-8 LCD DMA Frame Source Address Registers ..........................................................................7-39
7-9 LCD Frame ID Registers .........................................................................................................7-39
7-10 LCD DMA Command Registers...............................................................................................7-40
7-11 LCD DMA Frame Branch Registers (FBRx)............................................................................7-42
7-12 LCD Controller Status Register ...............................................................................................7-43
7-13 LCD Controller Interrupt ID Register........................................................................................7-46
7-14 TMED RGB Seed Register......................................................................................................7-47
7-15 TMED Control Register............................................................................................................7-47
7-16 LCD Controller Register Locations..........................................................................................7-49
8-1 External Interface to Codec.......................................................................................................8-1
8-2 SSP Control Register 0 (SSCR0) Bitmap and Bit Definitions....................................................8-9
8-3 SSP Control Register 1 (SSCR1) Bitmap and Definitions.......................................................8-11
8-4 TFT and RFT Values for DMA Servicing.................................................................................8-15
8-5 SSP Data Register (SSDR) Bitmap and Definitions................................................................8-16
8-6 SSP Status Register (SSSR) Bitmap and Bit Definitions.........................................................8-17
8-7 SSP Register Address Map.....................................................................................................8-19
9-1 MMC Signal Description............................................................................................................9-1
9-2 I2C Bus Definitions...................................................................................................................9-2
9-3 Modes of Operation...................................................................................................................9-3
9-4 START and STOP Bit Definitions..............................................................................................9-5
9-5 Master Transactions................................................................................................................9-12
9-6 Slave Transactions..................................................................................................................9-15
9-7 General Call Address Second Byte Definitions .......................................................................9-17
9-8 I
2
C Register Definitions ...........................................................................................................9-22
9-9 I2C Bus Monitor Register - IBMR ...........................................................................................9-23
9-10 I2C Data Buffer Register - IDBR.............................................................................................9-23
9-11 I2C Control Register - ICR......................................................................................................9-24
9-12 I2C Status Register - ISR .......................................................................................................9-27
9-13 I2C Slave Address Register - ISAR........................................................................................9-28
10-1 UART Signal Descriptions.......................................................................................................10-3
10-2 UART Register Addresses as Offsets of a Base.....................................................................10-6
10-3 Receive Buffer Register – RBR...............................................................................................10-6
10-4 Transmit Holding Register – THR............................................................................................10-7
10-5 Divisor Latch Low Register – DLL ...........................................................................................10-8
xx Intel® PXA26x Processor Family Developer’s Manual
Contents
10-6 Divisor Latch High Register – DLH..........................................................................................10-8
10-7 Interrupt Enable Register – IER...............................................................................................10-9
10-8 Interrupt Conditions...............................................................................................................10-11
10-9 Interrupt Identification Register – IIR.....................................................................................10-11
10-10 Interrupt Identification Register Decode................................................................................10-12
10-11 FIFO Control Register – FCR................................................................................................10-13
10-12 Line Control Register – LCR..................................................................................................10-14
10-13 Line Status Register – LSR ...................................................................................................10-16
10-14 Modem Control Register – MCR ...........................................................................................10-18
10-15 Modem Status Register – MSR.............................................................................................10-20
10-16 Scratch Pad Register – SPR.................................................................................................10-21
10-17 Infrared Selection Register – ISR..........................................................................................10-24
10-18 FFUART Register Addresses................................................................................................10-26
10-19 BTUART Register Locations .................................................................................................10-26
10-20 STUART Register Locations .................................................................................................10-27
10-21 Flow Control Registers in BTUART and STUART.................................................................10-27
11-1 FICP Signal Description ..........................................................................................................11-1
11-2 Fast Infrared Communication Port Control Register 0.............................................................11-9
11-3 Fast Infrared Communication Port Control Register 1...........................................................11-11
11-4 Fast Infrared Communication Port Control Register 2...........................................................11-11
11-5 Fast Infrared Communication Port Data Register..................................................................11-13
11-6 Fast Infrared Communication Port Status Register 0............................................................11-14
11-7 Fast Infrared Communication Port Status Register 1............................................................11-15
11-8 FICP Control, Data, and Status Register Locations..............................................................11-16
12-1 Endpoint Configuration............................................................................................................12-2
12-2 USB States..............................................................................................................................12-3
12-3 IN, OUT, and SETUP Token Packet Format...........................................................................12-6
12-4 SOF Token Packet Format......................................................................................................12-6
12-5 Data Packet Format.................................................................................................................12-6
12-6 Handshake Packet Format......................................................................................................12-6
12-7 Bulk Transaction Formats........................................................................................................12-7
12-8 Isochronous Transaction Formats...........................................................................................12-7
12-9 Control Transaction Formats...................................................................................................12-8
12-10 Interrupt Transaction Formats.................................................................................................12-8
12-11 Host Device Request Summary ..............................................................................................12-9
12-12 UDC Control Register............................................................................................................12-23
12-13 UDC Endpoint 0 Control Status Register ..............................................................................12-26
12-14 UDC Endpoint x Control Status Register, Where x is 1, 6 or 11 ...........................................12-28
12-15 UDC Endpoint x Control Status Register, Where x is 2, 7, or 12 ..........................................12-30
12-16 UDC Endpoint x Control Status Register, Where x is 3, 8, or 13 ..........................................12-33
12-17 UDC Endpoint x Control Status Register, Where x is 4, 9, or 14 ..........................................12-35
12-18 UDC Endpoint x Control Status Register, Where x is 5, 10, or 15 ........................................12-37
12-19 UDC Interrupt Control Register 0 ..........................................................................................12-38
12-20 UDC Interrupt Control Register 1 ..........................................................................................12-39
12-21 UDC Status / Interrupt Register 0..........................................................................................12-41
12-22 UDC Status / Interrupt Register 1..........................................................................................12-43
12-23 UDC Frame Number High Register.......................................................................................12-44
12-24 UDC Frame Number Low Register........................................................................................12-45
12-25 UDC Byte Count Register x, Where x is 2, 4, 7, 9, 12, or 14.................................................12-46
12-26 UDC Endpoint 0 Data Register..............................................................................................12-47
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