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MPC8308 PowerQUICC II Pro
Processor Reference Manual
MPC8308RM
Rev. 1
09/2013
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© 2010 and 2013 Freescale Semiconductor, Inc.
Document Number: MPC8308RM
Rev. 1, 09/2013
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 1
Freescale Semiconductor iii
Contents
Paragraph
Number Title
Page
Number
About This Book
Audience...................................................................................................................... lvii
Organization................................................................................................................. lvii
Suggested Reading........................................................................................................ lix
General Information.................................................................................................. lix
Related Documentation ............................................................................................ lix
Conventions................................................................................................................... lx
Signal Conventions....................................................................................................... lxi
Acronyms and Abbreviations ....................................................................................... lxi
Chapter 1
Overview
1.1 MPC8308 Overview ........................................................................................................ 1-1
1.2 MPC8308 Architecture Overview ................................................................................... 1-7
1.2.1 e300 Core..................................................................................................................... 1-7
1.2.2 DDR2 Memory Controller......................................................................................... 1-10
1.2.3 Dual Enhanced Three-Speed Ethernet Controllers.................................................... 1-10
1.2.4 SerDes PHY............................................................................................................... 1-11
1.2.5 PCI Express Interface ................................................................................................ 1-11
1.2.6 Universal Serial Bus (USB) 2.0................................................................................. 1-11
1.2.7 Enhanced Local Bus Controller (eLBC).................................................................... 1-12
1.2.8 Integrated Programmable Interrupt Controller (IPIC)............................................... 1-14
1.2.9 I
2
C Interface............................................................................................................... 1-15
1.2.10 General Purpose DMA Controller............................................................................. 1-15
1.2.11 Dual Universal Asynchronous Receiver/Transmitter (DUART)............................... 1-16
1.2.12 Enhanced Secure Digital Host Controller (eSDHC).................................................. 1-16
1.2.13 System Timers ...........................................................................................................1-17
Chapter 2
Signal Descriptions
2.1 Signals Overview.............................................................................................................2-1
2.2 Output Signal States During Reset ................................................................................ 2-13
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Chapter 3
Memory Map
3.1 Internal Memory-Mapped Registers................................................................................ 3-1
3.2 Accessing IMMR Memory from the Local Processor..................................................... 3-1
3.3 IMMR Address Map........................................................................................................ 3-1
Chapter 4
Reset, Clocking, and Initialization
4.1 External Signals............................................................................................................... 4-1
4.1.1 Reset Signals................................................................................................................4-1
4.1.2 Clock Signals............................................................................................................... 4-2
4.2 Functional Description..................................................................................................... 4-3
4.2.1 Reset Operations.......................................................................................................... 4-3
4.2.2 Power-On Reset Flow.................................................................................................. 4-5
4.2.3 Hard Reset Flow .......................................................................................................... 4-6
4.3 Reset Configuration......................................................................................................... 4-7
4.3.1 Reset Configuration Signals ........................................................................................ 4-7
4.3.2 Reset Configuration Words.......................................................................................... 4-9
4.3.3 Loading the Reset Configuration Words ................................................................... 4-16
4.4 Clocking ........................................................................................................................ 4-22
4.4.1 System Clock Domains.............................................................................................. 4-23
4.4.2 USB Clocking............................................................................................................ 4-24
4.4.3 Ethernet Clocking...................................................................................................... 4-25
4.5 Memory Map/Register Definitions................................................................................ 4-25
4.5.1 Reset Configuration Register Descriptions................................................................ 4-25
4.5.2 Clock Configuration Registers................................................................................... 4-29
Chapter 5
System Configuration
5.1 Local Memory Map Overview and Example .................................................................. 5-1
5.1.1 Address Translation and Mapping............................................................................... 5-3
5.1.2 Window into Configuration Space............................................................................... 5-3
5.1.3 Local Access Windows................................................................................................ 5-4
5.1.4 Local Access Register Descriptions ............................................................................ 5-5
5.1.5 Precedence of Local Access Windows...................................................................... 5-13
5.1.6 Configuring Local Access Windows......................................................................... 5-13
5.1.7 Distinguishing Local Access Windows from Other Mapping Functions.................. 5-13
5.1.8 Outbound Address Translation and Mapping Windows............................................ 5-14
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5.1.9 Inbound Address Translation and Mapping Windows .............................................. 5-14
5.1.10 Internal Memory Map................................................................................................ 5-14
5.1.11 Accessing Internal Memory from External Masters.................................................. 5-15
5.2 System Configuration .................................................................................................... 5-15
5.2.1 System Configuration Register Memory Map........................................................... 5-15
5.2.2 System Configuration Registers ................................................................................ 5-16
5.3 Software Watchdog Timer (WDT)................................................................................. 5-32
5.3.1 WDT Overview.......................................................................................................... 5-32
5.3.2 WDT Features............................................................................................................ 5-33
5.3.3 WDT Modes of Operation......................................................................................... 5-33
5.3.4 WDT Memory Map/Register Definition ................................................................... 5-34
5.3.5 Functional Description............................................................................................... 5-37
5.3.6 Initialization/Application Information (WDT Programming Guidelines)................. 5-39
5.4 Real Time Clock (RTC) Module.................................................................................... 5-39
5.4.1 Overview.................................................................................................................... 5-39
5.4.2 Features...................................................................................................................... 5-40
5.4.3 Assumptions............................................................................................................... 5-40
5.4.4 Modes of operation.................................................................................................... 5-40
5.4.5 External Signal Description....................................................................................... 5-41
5.4.6 RTC Memory Map/Register Definition..................................................................... 5-41
5.4.7 Functional Description............................................................................................... 5-45
5.4.8 RTC Reset Sequence.................................................................................................. 5-47
5.4.9 RTC Initialization Sequence...................................................................................... 5-47
5.5 Periodic Interval Timer (PIT) ........................................................................................ 5-47
5.5.1 PIT Overview............................................................................................................. 5-47
5.5.2 PIT Features...............................................................................................................5-48
5.5.3 PIT Modes of Operation............................................................................................ 5-48
5.5.4 PIT External Signal Description................................................................................ 5-48
5.5.5 PIT Memory Map/Register Definition ...................................................................... 5-49
5.5.6 Functional Description............................................................................................... 5-52
5.5.7 PIT Programming Guidelines.................................................................................... 5-53
5.6 General-Purpose Timers (GTMs)................................................................................... 5-53
5.6.1 GTM Overview.......................................................................................................... 5-53
5.6.2 GTM Features ............................................................................................................ 5-54
5.6.3 GTM Modes of Operation..........................................................................................5-55
5.6.4 GTM External Signal Description ............................................................................. 5-56
5.6.5 GTM Memory Map/Register Definition.................................................................... 5-57
5.6.6 Functional Description............................................................................................... 5-66
5.6.7 Initialization/Application Information (Programming Guidelines for GTM Registers)....
5-69
5.7 Power Management Control (PMC).............................................................................. 5-69
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5.7.1 External Signal Description....................................................................................... 5-70
5.7.2 PMC Memory Map/Register Definition.................................................................... 5-70
5.7.3 Functional Description............................................................................................... 5-71
Chapter 6
Arbiter and Bus Monitor
6.1 Overview..........................................................................................................................6-1
6.1.1 Coherent System Bus Overview.................................................................................. 6-1
6.2 Arbiter Memory Map/Register Definition....................................................................... 6-2
6.2.1 Arbiter Configuration Register (ACR)........................................................................ 6-3
6.2.2 Arbiter Timers Register (ATR).................................................................................... 6-4
6.2.3 Arbiter Event Enable Register (AEER)....................................................................... 6-5
6.2.4 Arbiter Event Register (AER)...................................................................................... 6-6
6.2.5 Arbiter Interrupt Definition Register (AIDR).............................................................. 6-7
6.2.6 Arbiter Mask Register (AMR)..................................................................................... 6-8
6.2.7 Arbiter Event Attributes Register (AEATR)................................................................ 6-9
6.2.8 Arbiter Event Address Register (AEADR)................................................................ 6-10
6.2.9 Arbiter Event Response Register (AERR)................................................................. 6-11
6.3 Functional Description................................................................................................... 6-12
6.3.1 Arbitration Policy ...................................................................................................... 6-12
6.3.2 Bus Error Detection................................................................................................... 6-15
6.4 Initialization/Applications Information ......................................................................... 6-18
6.4.1 Initialization Sequence............................................................................................... 6-18
6.4.2 Error Handling Sequence........................................................................................... 6-18
Chapter 7
e300 Processor Core Overview
7.1 Overview..........................................................................................................................7-1
7.1.1 Features........................................................................................................................ 7-3
7.1.2 Instruction Unit............................................................................................................ 7-6
7.1.3 Independent Execution Units....................................................................................... 7-7
7.1.4 Completion Unit .......................................................................................................... 7-8
7.1.5 Memory Subsystem Support........................................................................................ 7-8
7.1.6 Bus Interface Unit (BIU) ........................................................................................... 7-10
7.1.7 System Support Functions......................................................................................... 7-11
7.2 e300 Processor and System Version Numbers............................................................... 7-13
7.3 PowerPC Architecture Implementation......................................................................... 7-13
7.4 Implementation-Specific Information............................................................................ 7-14
7.4.1 Register Model........................................................................................................... 7-14
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7.4.2 Instruction Set and Addressing Modes...................................................................... 7-26
7.4.3 Cache Implementation............................................................................................... 7-29
7.4.4 Interrupt Model.......................................................................................................... 7-31
7.4.5 Memory Management................................................................................................ 7-35
7.4.6 Instruction Timing .....................................................................................................7-36
7.4.7 Core Interface ............................................................................................................ 7-37
7.4.8 Debug Features ......................................................................................................... 7-39
7.5 Differences Between Cores........................................................................................... 7-40
Chapter 8
Integrated Programmable Interrupt Controller (IPIC)
8.1 Introduction...................................................................................................................... 8-1
8.2 Features............................................................................................................................ 8-4
8.3 Modes of Operation ......................................................................................................... 8-4
8.3.1 Core Enable Mode....................................................................................................... 8-4
8.3.2 Core Disable Mode...................................................................................................... 8-4
8.4 External Signal Description............................................................................................. 8-5
8.4.1 Overview...................................................................................................................... 8-5
8.4.2 Detailed Signal Descriptions ....................................................................................... 8-5
8.5 Memory Map/Register Definition ................................................................................... 8-6
8.5.1 System Global Interrupt Configuration Register (SICFR).......................................... 8-8
8.5.2 System Global Interrupt Vector Register (SIVCR)...................................................... 8-9
8.5.3 System Internal Interrupt Pending Registers (SIPNR_H and SIPNR_L).................. 8-12
8.5.4 System Internal Interrupt Group A Priority Register (SIPRR_A)............................. 8-14
8.5.5 System Internal Interrupt Group B Priority Register (SIPRR_B) ............................. 8-15
8.5.6 System Internal Interrupt Group C Priority Register (SIPRR_C) ............................. 8-16
8.5.7 System Internal Interrupt Group D Priority Register (SIPRR_D)............................. 8-16
8.5.8 System Internal Interrupt Mask Register (SIMSR_H and SIMSR_L)...................... 8-17
8.5.9 System Internal Interrupt Control Register (SICNR)................................................ 8-18
8.5.10 System External Interrupt Pending Register (SEPNR).............................................. 8-20
8.5.11 System Mixed Interrupt Group A Priority Register (SMPRR_A)............................. 8-21
8.5.12 System Mixed Interrupt Group B Priority Register (SMPRR_B)............................. 8-22
8.5.13 System External Interrupt Mask Register (SEMSR)................................................. 8-22
8.5.14 System External Interrupt Control Register (SECNR).............................................. 8-23
8.5.15 System Error Status Register (SERSR) ..................................................................... 8-25
8.5.16 System Error Mask Register (SERMR)..................................................................... 8-25
8.5.17 System Error Control Register (SERCR) .................................................................. 8-26
8.5.18 System External interrupt Polarity Control Register (SEPCR)................................. 8-26
8.5.19 System Internal Interrupt Force Registers (SIFCR_H and SIFCR_L)...................... 8-27
8.5.20 System External Interrupt Force Register (SEFCR).................................................. 8-29
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8.5.21 System Error Force Register (SERFR)...................................................................... 8-29
8.5.22 System Critical Interrupt Vector Register (SCVCR)................................................. 8-30
8.5.23 System Management Interrupt Vector Register (SMVCR) ....................................... 8-30
8.6 Functional Description................................................................................................... 8-31
8.6.1 Interrupt Types........................................................................................................... 8-31
8.6.2 Interrupt Configuration.............................................................................................. 8-32
8.6.3 Internal Interrupts Group Relative Priority................................................................ 8-33
8.6.4 Mixed Interrupts Group Relative Priority.................................................................. 8-33
8.6.5 Highest Priority Interrupt........................................................................................... 8-34
8.6.6 Interrupt Source Priorities.......................................................................................... 8-34
8.6.7 Masking Interrupt Sources......................................................................................... 8-38
8.6.8 Interrupt Vector Generation and Calculation............................................................. 8-39
8.6.9 Machine Check Interrupts.......................................................................................... 8-39
8.7 Message Shared Interrupts............................................................................................. 8-40
8.7.1 Memory Map/Register Definition .............................................................................8-40
8.7.2 Message Shared Registers ......................................................................................... 8-40
Chapter 9
DDR Memory Controller
9.1 Introduction...................................................................................................................... 9-1
9.2 Features............................................................................................................................ 9-2
9.2.1 Modes of Operation..................................................................................................... 9-3
9.3 External Signal Descriptions ........................................................................................... 9-3
9.3.1 Signals Overview......................................................................................................... 9-3
9.3.2 Detailed Signal Descriptions ....................................................................................... 9-6
9.4 Memory Map/Register Definition ................................................................................... 9-9
9.4.1 Register Descriptions................................................................................................. 9-10
9.5 Functional Description................................................................................................... 9-38
9.5.1 DDR SDRAM Interface Operation............................................................................ 9-42
9.5.2 DDR SDRAM Address Multiplexing........................................................................ 9-43
9.5.3 JEDEC Standard DDR SDRAM Interface Commands............................................. 9-45
9.5.4 DDR SDRAM Interface Timing................................................................................ 9-47
9.5.5 DDR SDRAM Mode-Set Command Timing............................................................. 9-51
9.5.6 DDR SDRAM Registered DIMM Mode................................................................... 9-51
9.5.7 DDR SDRAM Write Timing Adjustments................................................................ 9-52
9.5.8 DDR SDRAM Refresh .............................................................................................. 9-53
9.5.9 DDR Data Beat Ordering........................................................................................... 9-56
9.5.10 Page Mode and Logical Bank Retention ................................................................... 9-57
9.5.11 Error Checking and Correcting (ECC) ...................................................................... 9-58
9.5.12 Error Management..................................................................................................... 9-60
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9.6 Initialization/Application Information........................................................................... 9-60
9.6.1 DDR SDRAM Initialization Sequence...................................................................... 9-62
Chapter 10
Enhanced Local Bus Controller
10.1 Introduction.................................................................................................................... 10-1
10.1.1 Overview.................................................................................................................... 10-2
10.1.2 Features...................................................................................................................... 10-2
10.1.3 Modes of Operation................................................................................................... 10-3
10.2 External Signal Descriptions ......................................................................................... 10-4
10.3 Memory Map/Register Definition ................................................................................. 10-7
10.3.1 Register Descriptions................................................................................................. 10-9
10.4 Functional Description................................................................................................. 10-39
10.4.1 Basic Architecture.................................................................................................... 10-40
10.4.2 General-Purpose Chip-Select Machine (GPCM)..................................................... 10-42
10.4.3 Flash Control Machine (FCM) ................................................................................ 10-53
10.4.4 User-Programmable Machines (UPMs)................................................................... 10-68
10.5 Initialization/Application Information......................................................................... 10-84
10.5.1 Interfacing to Peripherals in Different Address Modes........................................... 10-84
10.5.2 Interface to Different Port-Size Devices.................................................................. 10-85
10.5.3 Command Sequence Examples for NAND Flash EEPROM................................... 10-86
10.5.4 Interfacing to Fast-Page Mode DRAM Using UPM ............................................... 10-90
10.5.5 Interfacing to ZBT SRAM Using UPM................................................................. 10-100
Chapter 11
Enhanced Secure Digital Host Controller
11.1 Overview........................................................................................................................ 11-1
11.2 Features.......................................................................................................................... 11-3
11.2.1 Data Transfer Modes.................................................................................................. 11-4
11.3 External Signal Description........................................................................................... 11-4
11.4 Memory Map/Register Definition ................................................................................. 11-5
11.4.1 DMA System Address Register (DSADDR)............................................................. 11-7
11.4.2 Block Attributes Register (BLKATTR)..................................................................... 11-7
11.4.3 Command Argument Register (CMDARG).............................................................. 11-8
11.4.4 Transfer Type Register (XFERTYP).......................................................................... 11-9
11.4.5 Command Response 0–3 (CMDRSP0–3)................................................................ 11-12
11.4.6 Buffer Data Port Register (DATPORT)................................................................... 11-14
11.4.7 Present State Register (PRSSTAT) .......................................................................... 11-15
11.4.8 Protocol Control Register (PROCTL) ..................................................................... 11-19
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11.4.9 System Control Register (SYSCTL)........................................................................ 11-22
11.4.10 Interrupt Status Register (IRQSTAT)....................................................................... 11-24
11.4.11 Interrupt Status Enable Register (IRQSTATEN)..................................................... 11-28
11.4.12 Interrupt Signal Enable Register (IRQSIGEN) ....................................................... 11-31
11.4.13 Auto CMD12 Error Status Register (AUTOC12ERR)............................................ 11-33
11.4.14 Host Controller Capabilities (HOSTCAPBLT) ....................................................... 11-35
11.4.15 Watermark Level Register (WML).......................................................................... 11-36
11.4.16 Force Event Register (FEVT).................................................................................. 11-36
11.4.17 Host Controller Version Register (HOSTVER)....................................................... 11-38
11.4.18 DMA Control Register (DCR)................................................................................. 11-38
11.5 Functional Description................................................................................................. 11-38
11.5.1 Data Buffer .............................................................................................................. 11-39
11.5.2 DMA CSB Interface ................................................................................................ 11-41
11.5.3 SD Protocol Unit...................................................................................................... 11-42
11.5.4 Clock & Reset Manager........................................................................................... 11-44
11.5.5 Clock Generator....................................................................................................... 11-44
11.5.6 SDIO Card Interrupt ................................................................................................ 11-44
11.5.7 Card Insertion and Removal Detection.................................................................... 11-46
11.5.8 Power Management ................................................................................................. 11-46
11.6 Initialization/Application Information......................................................................... 11-47
11.6.1 Command Send and Response Receive Basic Operation........................................ 11-47
11.6.2 Card Identification Mode......................................................................................... 11-48
11.6.3 Card Access ............................................................................................................. 11-52
11.6.4 Switch Function....................................................................................................... 11-57
11.6.5 Commands for MMC/SD/SDIO.............................................................................. 11-60
11.7 Software Restrictions................................................................................................... 11-65
11.7.1 Initialization Active ................................................................................................. 11-65
11.7.2 Software Polling Procedure..................................................................................... 11-65
11.7.3 Suspend Operation................................................................................................... 11-65
11.7.4 Data Port Access...................................................................................................... 11-65
11.7.5 Multi-block Read..................................................................................................... 11-65
Chapter 12
DMA Controller (DMAC)
12.1 Overview........................................................................................................................12-1
12.1.1 Features...................................................................................................................... 12-2
12.2 DMAC Memory Map/Register Definition .................................................................... 12-2
12.2.1 DMA Control Register (DMACR)............................................................................ 12-3
12.3 DMA Error Status (DMAES) ........................................................................................ 12-6
12.3.1 DMA Enable Error Interrupt Register (DMAEEI).................................................... 12-8
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12.3.2 DMA Set Enable Error Interrupt (DMASEEI).......................................................... 12-9
12.3.3 DMA Clear Enable Error Interrupt (DMACEEI)...................................................... 12-9
12.3.4 DMA Clear Interrupt Request (DMACINT)........................................................... 12-10
12.3.5 DMA Clear Error (DMACERR).............................................................................. 12-11
12.3.6 DMA Set START Bit (DMASSRT)......................................................................... 12-11
12.3.7 DMA Clear DONE Status (DMACDNE)................................................................ 12-12
12.3.8 DMA Interrupt Request Register (DMAINT)......................................................... 12-12
12.3.9 DMA Error Register (DMAERR)............................................................................ 12-13
12.3.10 DMA General Purpose Output Register (DMAGPOR) .......................................... 12-14
12.3.11 DMA Channel n Priority (DCHPRIn), n = 0–15..................................................... 12-15
12.3.12 Transfer Control Descriptor (TCD)......................................................................... 12-16
12.4 Functional Description................................................................................................. 12-24
12.4.1 DMA Microarchitecture ..........................................................................................12-24
12.4.2 DMA Basic Data Flow ............................................................................................12-25
12.5 Initialization/Application Information......................................................................... 12-28
12.5.1 DMA Initialization................................................................................................... 12-28
12.5.2 DMA Programming Errors...................................................................................... 12-29
12.6 DMA Transfer.............................................................................................................. 12-29
12.6.1 Single Request ......................................................................................................... 12-29
12.6.2 Multiple Requests.................................................................................................... 12-30
12.7 TCD Status................................................................................................................... 12-32
12.7.1 Minor Loop Complete ............................................................................................. 12-32
12.7.2 Active Channel TCD Reads..................................................................................... 12-32
12.7.3 Preemption status..................................................................................................... 12-32
12.8 Channel Linking .......................................................................................................... 12-33
12.9 Programming during channel execution...................................................................... 12-33
12.9.1 Dynamic priority changing...................................................................................... 12-33
12.9.2 Dynamic channel linking and dynamic scatter/gather............................................. 12-34
Chapter 13
Universal Serial Bus Interface
13.1 Introduction.................................................................................................................... 13-1
13.1.1 Overview.................................................................................................................... 13-2
13.1.2 Features...................................................................................................................... 13-2
13.1.3 Modes of Operation................................................................................................... 13-2
13.2 External Signals............................................................................................................. 13-3
13.2.1 ULPI Interface ........................................................................................................... 13-3
13.3 Memory Map/Register Definitions................................................................................ 13-4
13.3.1 Capability Registers................................................................................................... 13-6
13.3.2 Operational Registers............................................................................................... 13-10
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13.4 Functional Description................................................................................................. 13-44
13.4.1 System Interface ...................................................................................................... 13-44
13.4.2 DMA Engine............................................................................................................ 13-45
13.4.3 FIFO RAM Controller............................................................................................. 13-45
13.4.4 PHY Interface.......................................................................................................... 13-45
13.5 Host Data Structures.................................................................................................... 13-45
13.5.1 Periodic Frame List.................................................................................................. 13-46
13.5.2 Asynchronous List Queue Head Pointer.................................................................. 13-47
13.5.3 Isochronous (High-Speed) Transfer Descriptor (iTD).............................................13-48
13.5.4 Split Transaction Isochronous Transfer Descriptor (siTD)...................................... 13-52
13.5.5 Queue Element Transfer Descriptor (qTD) ............................................................. 13-56
13.5.6 Queue Head.............................................................................................................. 13-62
13.5.7 Periodic Frame Span Traversal Node (FSTN)......................................................... 13-66
13.6 Host Operations ........................................................................................................... 13-68
13.6.1 Host Controller Initialization................................................................................... 13-68
13.6.2 Power Port................................................................................................................ 13-69
13.6.3 Reporting Over-Current........................................................................................... 13-69
13.6.4 Suspend/Resume...................................................................................................... 13-69
13.6.5 Schedule Traversal Rules......................................................................................... 13-72
13.6.6 Periodic Schedule Frame Boundaries vs. Bus Frame Boundaries........................... 13-73
13.6.7 Periodic Schedule .................................................................................................... 13-75
13.6.8 Managing Isochronous Transfers Using iTDs......................................................... 13-76
13.6.9 Asynchronous Schedule........................................................................................... 13-81
13.6.10 Managing Control/Bulk/Interrupt Transfers via Queue Heads................................ 13-85
13.6.11 Ping Control............................................................................................................. 13-89
13.6.12 Split Transactions..................................................................................................... 13-90
13.6.13 Port Test Modes ..................................................................................................... 13-118
13.6.14 Interrupts................................................................................................................ 13-119
13.7 Device Data Structures .............................................................................................. 13-123
13.7.1 Endpoint Queue Head............................................................................................ 13-124
13.7.2 Endpoint Transfer Descriptor (dTD) .....................................................................13-127
13.8 Device Operational Model......................................................................................... 13-129
13.8.1 Device Controller Initialization............................................................................. 13-129
13.8.2 Port State and Control............................................................................................ 13-130
13.8.3 Managing Endpoints.............................................................................................. 13-133
13.8.4 Managing Queue Heads......................................................................................... 13-143
13.8.5 Managing Transfers with Transfer Descriptors ..................................................... 13-145
13.8.6 Servicing Interrupts................................................................................................ 13-148
13.9 Deviations from the EHCI Specifications ................................................................. 13-149
13.9.1 Embedded Transaction Translator Function.......................................................... 13-150
13.9.2 Device Operation................................................................................................... 13-153
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13.9.3 Non-Zero Fields the Register File ......................................................................... 13-154
13.9.4 SOF Interrupt......................................................................................................... 13-154
13.9.5 Embedded Design.................................................................................................. 13-154
13.9.6 Miscellaneous Variations from EHCI.................................................................... 13-154
13.10 Timing Diagrams ....................................................................................................... 13-156
Chapter 14
PCI Express Interface Controller
14.1 Introduction.................................................................................................................... 14-1
14.1.1 MPC8308 as a PCI Express Initiator......................................................................... 14-3
14.1.2 MPC8308 as a PCI Express Target............................................................................ 14-3
14.1.3 Features...................................................................................................................... 14-4
14.1.4 Modes of Operation................................................................................................... 14-4
14.2 External Signal Descriptions ......................................................................................... 14-5
14.3 Memory Map/Register Definitions................................................................................ 14-5
14.3.1 PCI Express Memory Map ........................................................................................ 14-5
14.4 PCI Express Core Configuration Header Registers..................................................... 14-14
14.4.1 Common PCI Express-Compatible Configuration Header Registers...................... 14-14
14.4.2 Type 0 PCI Express-Compatible Configuration Header Registers.......................... 14-21
14.4.3 Type 1 PCI-Compatible Configuration Header Registers ....................................... 14-27
14.4.4 PCI Express-Compatible Device-Specific Configuration Space Registers............. 14-36
14.4.5 PCI Express Extended Configuration Space ........................................................... 14-52
14.4.6 PCI Express Controller Internal Control and Status Registers (CSRs) ................... 14-62
14.4.7 PCI Express BAR Configuration Registers (EP Mode) .......................................... 14-72
14.4.8 PCI Express Extended Status and Control Registers............................................... 14-74
14.5 PCI Express CSB Bridge............................................................................................. 14-76
14.5.1 PCI Express CSB Bridge Configuration Space....................................................... 14-77
14.5.2 Global Registers....................................................................................................... 14-77
14.5.3 PCI Express Outbound PIO Registers..................................................................... 14-80
14.5.4 PCI Express Inbound PIO Registers........................................................................ 14-82
14.5.5 DMA Registers........................................................................................................ 14-83
14.5.6 Mailbox Registers.................................................................................................... 14-88
14.5.7 PCI Express Host Interrupt Registers...................................................................... 14-90
14.5.8 CSB System Interrupt Registers.............................................................................. 14-94
14.5.9 PCI Express Power Management Registers........................................................... 14-103
14.5.10 PCI Express Outbound Address Mapping Registers............................................. 14-104
14.5.11 PCI Express EP Inbound Address Translation Registers ...................................... 14-107
14.5.12 PCI Express RC Inbound Address Mapping Registers ......................................... 14-108
14.6 Functional Description................................................................................................14-111
14.6.1 Architecture ........................................................................................................... 14-112
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Page
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14.6.2 Interrupts............................................................................................................... 14-122
14.6.3 Mailbox.................................................................................................................. 14-124
14.6.4 Power Management ............................................................................................... 14-126
14.6.5 Hot Reset................................................................................................................ 14-127
14.7 Initialization/Application Information....................................................................... 14-127
14.7.1 Initialization Sequence........................................................................................... 14-127
14.8 DMA Functional Operation....................................................................................... 14-128
14.8.1 DMA Descriptor Format........................................................................................ 14-128
14.8.2 Write DMA............................................................................................................ 14-130
14.8.3 Read DMA............................................................................................................. 14-131
14.8.4 Descriptor-Based DMA......................................................................................... 14-132
Chapter 15
SerDes PHY
15.1 Introduction.................................................................................................................... 15-1
15.1.1 Overview.................................................................................................................... 15-1
15.1.2 Features...................................................................................................................... 15-1
15.1.3 Mode of Operation..................................................................................................... 15-2
15.1.4 Clock.......................................................................................................................... 15-2
15.2 External Signals............................................................................................................. 15-2
15.3 Memory Map/Registers ................................................................................................. 15-3
15.3.1 SerDes Control Register 0 (SRDSCR0) .................................................................... 15-4
15.3.2 SerDes Control Register 1 (SRDSCR1) .................................................................... 15-6
15.3.3 SerDes Control Register 2 (SRDSCR2) .................................................................... 15-7
15.3.4 SerDes Control Register 3 (SRDSCR3) .................................................................... 15-8
15.3.5 SerDes Control Register 4 (SRDSCR4) .................................................................... 15-9
15.3.6 SerDesn Reset Control Register (SRDSRSTCTL).................................................. 15-10
15.4 Initialization Sequence and Reset................................................................................ 15-10
15.5 Power Management: Power Down .............................................................................. 15-11
Chapter 16
Enhanced Three-Speed Ethernet Controllers
16.1 Overview........................................................................................................................16-1
16.2 Features.......................................................................................................................... 16-2
16.3 Modes of Operation ....................................................................................................... 16-4
16.4 External Signals Description ......................................................................................... 16-5
16.4.1 Detailed Signal Descriptions ..................................................................................... 16-7
16.5 Memory Map/Register Definition ................................................................................. 16-9
16.5.1 Top-Level Module Memory Map ............................................................................ 16-10
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Page
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16.5.2 Detailed Memory Map............................................................................................. 16-10
16.5.3 Memory-Mapped Register Descriptions.................................................................. 16-21
16.6 Functional Description............................................................................................... 16-120
16.6.1 Connecting to Physical Interfaces on Ethernet...................................................... 16-121
16.6.2 Gigabit Ethernet Controller Channel Operation.................................................... 16-124
16.6.3 TCP/IP Off-Load ................................................................................................... 16-139
16.6.4 Quality of Service (QoS) Provision....................................................................... 16-144
16.6.5 Lossless Flow Control ........................................................................................... 16-154
16.6.6 Hardware Assist for IEEE Std. 1588 Compliant Timestamping ........................... 16-157
16.6.7 Buffer Descriptors.................................................................................................. 16-164
16.7 Initialization/Application Information....................................................................... 16-171
16.7.1 Interface Mode Configuration ............................................................................... 16-172
16.7.2 MAC: Half-Duplex Collision on FCS of Short Frame.......................................... 16-178
Chapter 17
I
2
C Interface
17.1 Introduction.................................................................................................................... 17-1
17.1.1 Features...................................................................................................................... 17-2
17.1.2 Modes of Operation................................................................................................... 17-2
17.2 External Signal Descriptions ......................................................................................... 17-3
17.2.1 Signal Overview ........................................................................................................ 17-3
17.2.2 Detailed Signal Descriptions ..................................................................................... 17-3
17.3 Memory Map/Register Definition ................................................................................. 17-4
17.3.1 Register Descriptions................................................................................................. 17-5
17.4 Functional Description................................................................................................. 17-10
17.4.1 Transaction Protocol................................................................................................ 17-10
17.4.2 Arbitration Procedure .............................................................................................. 17-14
17.4.3 Handshaking ............................................................................................................ 17-15
17.4.4 Clock Control........................................................................................................... 17-15
17.4.5 Boot Sequencer Mode.............................................................................................. 17-16
17.5 Initialization/Application Information......................................................................... 17-21
17.5.1 Interrupt Service Routine Flowchart........................................................................ 17-21
17.5.2 Initialization Sequence............................................................................................. 17-23
17.5.3 Generation of START.............................................................................................. 17-23
17.5.4 Post-Transfer Software Response............................................................................ 17-23
17.5.5 Generation of STOP................................................................................................. 17-24
17.5.6 Generation of Repeated START .............................................................................. 17-24
17.5.7 Generation of SCL When SDA is Negated ............................................................. 17-24
17.5.8 Slave Mode Interrupt Service Routine..................................................................... 17-24
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Chapter 18
DUART
18.1 Overview........................................................................................................................18-1
18.1.1 Features...................................................................................................................... 18-2
18.1.2 Modes of Operation................................................................................................... 18-2
18.2 External Signal Descriptions ......................................................................................... 18-3
18.2.1 Signal Overview ........................................................................................................ 18-3
18.2.2 Detailed Signal Descriptions ..................................................................................... 18-3
18.3 Memory Map/Register Definition ................................................................................. 18-3
18.3.1 Register Descriptions................................................................................................. 18-5
18.4 Functional Description................................................................................................. 18-16
18.4.1 Serial Interface......................................................................................................... 18-17
18.4.2 Baud-Rate Generator Logic..................................................................................... 18-18
18.4.3 Local Loopback Mode............................................................................................. 18-19
18.4.4 Errors ....................................................................................................................... 18-19
18.4.5 FIFO Mode .............................................................................................................. 18-19
18.5 DUART Initialization/Application Information .......................................................... 18-21
Chapter 19
Serial Peripheral Interface
19.1 Overview........................................................................................................................19-1
19.1.1 Features...................................................................................................................... 19-2
19.1.2 SPI Transmission and Reception Process.................................................................. 19-2
19.1.3 Modes of Operation................................................................................................... 19-3
19.2 External Signal Descriptions ......................................................................................... 19-6
19.2.1 Overview.................................................................................................................... 19-6
19.2.2 Detailed Signal Descriptions ..................................................................................... 19-6
19.3 Memory Map/Register Definition ................................................................................. 19-7
19.3.1 Register Descriptions................................................................................................. 19-8
19.4 Initialization/Application Information......................................................................... 19-15
19.4.1 SPI Master Programming Example ......................................................................... 19-15
19.4.2 SPI Slave Programming Example............................................................................ 19-15
Chapter 20
JTAG/Testing Support
20.1 Overview........................................................................................................................20-1
20.2 JTAG Signals ................................................................................................................. 20-1
20.2.1 External Signal Descriptions ..................................................................................... 20-2
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20.3 JTAG Registers and Scan Chains .................................................................................. 20-3
Chapter 21
General Purpose I/O (GPIO)
21.1 Introduction.................................................................................................................... 21-1
21.1.1 Overview.................................................................................................................... 21-1
21.1.2 Features...................................................................................................................... 21-1
21.2 External Signal Description........................................................................................... 21-2
21.2.1 Signals Overview....................................................................................................... 21-2
21.3 Memory Map/Register Definition ................................................................................. 21-2
21.3.1 GPIO Direction Register (GPDIR)............................................................................ 21-3
21.3.2 GPIO Open Drain Register (GPODR)....................................................................... 21-3
21.3.3 GPIO Data Register (GPDAT)................................................................................... 21-4
21.3.4 GPIO Interrupt Event Register (GPIER)................................................................... 21-4
21.3.5 GPIO Interrupt Mask Register (GPIMR)................................................................... 21-4
21.3.6 GPIO Interrupt Control Register (GPICR)................................................................ 21-5
Appendix A
Complete List of Configuration, Control, and Status Registers
A.1 Local Access Windows................................................................................................... A-1
A.2 System Configuration Registers ..................................................................................... A-2
A.3 Watchdog Timer (WDT)................................................................................................. A-3
A.4 Real Time Clock (RTC).................................................................................................. A-3
A.5 Periodic Interval Timer (PIT) ......................................................................................... A-3
A.6 General Purpose (Global) Timers (GTMs) ..................................................................... A-4
A.7 Integrated Programmable Interrupt Controller (IPIC).................................................... A-5
A.8 System Arbiter................................................................................................................ A-6
A.9 Reset Configuration........................................................................................................ A-6
A.10 Clock Configuration ....................................................................................................... A-7
A.11 Power Management Controller (PMC)........................................................................... A-7
A.12 General Purpose I/O (GPIO)........................................................................................... A-8
A.13 DDR Memory Controller................................................................................................ A-8
A.14 I
2
C Controller ................................................................................................................. A-9
A.15 DUART......................................................................................................................... A-10
A.16 Enhanced Local Bus Controller (eLBC)........................................................................A-11
A.17 Serial Peripheral Interface (SPI)................................................................................... A-12
A.18 DMA Controller............................................................................................................ A-13
A.19 PCI Express Controller................................................................................................. A-14
A.20 Enhanced Three-Speed Ethernet Controllers (eTSECs)............................................... A-21
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A.21 SerDes PHY..................................................................................................................A-31
A.22 Enhanced Secure Digital Host Controller (eSDHC)..................................................... A-32
A.23 Universal Serial Bus (USB) Interface........................................................................... A-32
Appendix B
Revision History
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 1
Freescale Semiconductor xix
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Page
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Figures
1-1 MPC8308 Block Diagram....................................................................................................... 1-1
1-2 MPC8308 Integrated e300c3 Core Block Diagram................................................................ 1-9
1-3 USB Controllers Port Configuration..................................................................................... 1-12
2-1 MPC8308 Signal Groupings (1 of 2)...................................................................................... 2-2
2-2 MPC8308 Signal Groupings (2 of 2)...................................................................................... 2-3
4-1 Power-On Reset Flow............................................................................................................. 4-6
4-2 Hard Reset Flow...................................................................................................................... 4-7
4-3 Reset Configuration Word Low Register (RCWLR)............................................................ 4-10
4-4 Reset Configuration Word High Register (RCWHR)........................................................... 4-12
4-5 EEPROM Data Format for Reset Configuration Words Preload Command........................ 4-19
4-6 EEPROM Contents............................................................................................................... 4-20
4-7 Clock Subsystem Block Diagram ......................................................................................... 4-23
4-8 Reset Status Register (RSR)..................................................................................................4-26
4-9 Reset Mode Register (RMR)................................................................................................. 4-27
4-10 Reset Protection Register (RPR)........................................................................................... 4-28
4-11 Reset Control Register (RCR)............................................................................................... 4-28
4-12 Reset Control Enable Register (RCER)................................................................................ 4-29
4-13 System PLL Mode Register.................................................................................................. 4-30
4-14 Output Clock Control Register (OCCR)............................................................................... 4-31
4-15 System Clock Control Register (SCCR)............................................................................... 4-32
5-1 Local Memory Map Example ................................................................................................. 5-2
5-2 Internal Memory Map Registers’ Base Address Register (IMMRBAR)................................ 5-6
5-3 Alternate Configuration Base Address Register (ALTCBAR)............................................... 5-7
5-4 LBC Local Access Window n Base Address Registers (LBLAWBAR0–LBLAWBAR3) .... 5-7
5-5 LBC Local Access Window n Attributes Registers (LBLAWAR0–LBLAWAR3) ................ 5-8
5-6 PCI Express 1 Local Access Window Base Address Register (PCIEXP1LAWBAR)........... 5-9
5-7 PCI Express 1 Local Access Window Attributes Register (PCIEXP1LAWAR).................. 5-10
5-8 DDR Local Access Window n Base Address Registers (DDRLAWBAR0–DDRLAWBAR1)...
5-11
5-9 DDR Local Access Window n Attributes Registers (DDRLAWAR0–DDRLAWAR1)....... 5-12
5-10 System General Purpose Register Low (SGPRL)................................................................. 5-16
5-11 System General Purpose Register High (SGPRH) ............................................................... 5-16
5-12 System Part and Revision ID Register (SPRIDR) ................................................................ 5-17
5-13 System Priority Configuration Register (SPCR) .................................................................. 5-18
5-14 System I/O Configuration Register Low (SICRL) ............................................................... 5-20
5-15 System I/O Configuration Register High (SICRH) .............................................................. 5-22
5-16 DDR Control Driver Register (DDRCDR)........................................................................... 5-27
5-17 DDR Debug Status Register (DDRDSR).............................................................................. 5-28
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5-18 PCI Express Controller Registers (PECR1).......................................................................... 5-29
5-19 eSDHC Control Register (SDHCCR)................................................................................... 5-30
5-20 RTC Control Register (RTCCR)........................................................................................... 5-32
5-21 Software Watchdog Timer High-Level Block Diagram ....................................................... 5-33
5-22 System Watchdog Control Register (SWCRR)..................................................................... 5-34
5-23 System Watchdog Count Register (SWCNR)....................................................................... 5-35
5-24 System Watchdog Service Register (SWSRR)..................................................................... 5-36
5-25 Software Watchdog Timer Service State Diagram................................................................ 5-37
5-26 Software Watchdog Timer Functional Block Diagram......................................................... 5-38
5-27 RTC Block Diagram.............................................................................................................. 5-40
5-28 Real Time Counter Control Register (RTCNR).................................................................... 5-42
5-29 Real Time Counter Load Register (RTLDR)........................................................................ 5-43
5-30 Real Time Counter Prescale Register (RTPSR).................................................................... 5-43
5-31 Real Time Counter Register (RTCTR).................................................................................. 5-44
5-32 Real Time Counter Event Register (RTEVR)....................................................................... 5-44
5-33 Real Time Counter Alarm Register (RTALR) ...................................................................... 5-45
5-34 Real Time Clock Module Functional Block Diagram .......................................................... 5-46
5-35 Periodic Interval Timer High Level Block Diagram............................................................. 5-48
5-36 Periodic Interval Timer Control Register (PTCNR) ............................................................. 5-49
5-37 Periodic Interval Timer Load Register (PTLDR)..................................................................5-50
5-38 Periodic Interval Timer Prescale Register (PTPSR) ............................................................. 5-50
5-39 Periodic Interval Timer Counter Register (PTCTR)............................................................. 5-51
5-40 Periodic Interval Timer Event Register (PTEVR)................................................................. 5-51
5-41 Periodic Interval Timer Functional Block Diagram.............................................................. 5-52
5-42 Global Timers Block Diagram.............................................................................................. 5-54
5-43 Global Timers Configuration Register 1 (GTCFR1)............................................................. 5-59
5-44 Global Timers Configuration Register 2 (GTCFR2)............................................................. 5-60
5-45 Global Timers Mode Registers (GTMDR1–GTMDR4)........................................................ 5-62
5-46 Global Timers Reference Registers (GTRFR1–GTRFR4).................................................... 5-63
5-47 Global Timers Capture Registers (GTCPR1–GTCPR4) ....................................................... 5-63
5-48 Global Timers Counter Registers (GTCNR1—GTCNR4).................................................... 5-64
5-49 Global Timers Event Registers (GTEVR1—GTEVR4)........................................................ 5-64
5-50 Global Timers Prescale Registers (GTPSR1–GTPSR4)........................................................ 5-65
5-51 Timers Non-Cascaded Mode Block Diagram....................................................................... 5-67
5-52 Timer Pair-Cascaded Mode Block Diagram......................................................................... 5-68
5-53 Timers Super-Cascaded Mode Block Diagram..................................................................... 5-68
5-54 Power Management Controller Configuration Register ....................................................... 5-70
6-1 Arbiter Configuration Register (ACR) ................................................................................... 6-3
6-2 Arbiter Timers Register (ATR) ...............................................................................................6-4
6-3 Arbiter Event Enable Register (AEER) .................................................................................. 6-5
6-4 Arbiter Event Register (AER).................................................................................................6-6
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