NXP KL4x Reference guide

Type
Reference guide
KL46 Sub-Family Reference Manual
Supports: MKL46Z128VLH4, MKL46Z256VLH4, MKL46Z256VMP4,
MKL46Z128VLL4, MKL46Z256VLL4, MKL46Z128VMC4,
MKL46Z256VMC4
Document Number: KL46P121M48SF4RM
Rev. 3, July 2013
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Contents
Section number Title Page
Chapter 1
About This Document
1.1 Overview.......................................................................................................................................................................37
1.1.1 Purpose.........................................................................................................................................................37
1.1.2 Audience......................................................................................................................................................37
1.2 Conventions..................................................................................................................................................................37
1.2.1 Numbering systems......................................................................................................................................37
1.2.2 Typographic notation...................................................................................................................................38
1.2.3 Special terms................................................................................................................................................38
Chapter 2
Introduction
2.1 Overview.......................................................................................................................................................................39
2.1.1 Kinetis L series.............................................................................................................................................39
2.1.2 KL46 sub-family introduction.....................................................................................................................42
2.2 Module functional categories........................................................................................................................................43
2.2.1 ARM Cortex-M0+ core modules.................................................................................................................44
2.2.2 System modules...........................................................................................................................................44
2.2.3 Memories and memory interfaces................................................................................................................45
2.2.4 Clocks...........................................................................................................................................................45
2.2.5 Security and integrity modules....................................................................................................................46
2.2.6 Analog modules...........................................................................................................................................46
2.2.7 Timer modules.............................................................................................................................................46
2.2.8 Communication interfaces...........................................................................................................................47
2.2.9 Human-machine interfaces..........................................................................................................................48
2.3 Orderable part numbers.................................................................................................................................................48
Chapter 3
Chip Configuration
3.1 Introduction...................................................................................................................................................................49
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3.2 Module to module interconnects...................................................................................................................................49
3.2.1 Interconnection overview.............................................................................................................................49
3.2.2 Analog reference options.............................................................................................................................51
3.3 Core modules................................................................................................................................................................51
3.3.1 ARM Cortex-M0+ core configuration.........................................................................................................52
3.3.2 Nested vectored interrupt controller (NVIC) configuration.........................................................................54
3.3.3 Asynchronous wake-up interrupt controller (AWIC) configuration............................................................58
3.4 System modules............................................................................................................................................................59
3.4.1 SIM configuration........................................................................................................................................59
3.4.2 System mode controller (SMC) configuration.............................................................................................60
3.4.3 PMC configuration.......................................................................................................................................60
3.4.4 Low-Leakage Wake-up Unit (LLWU) Configuration.................................................................................61
3.4.5 MCM configuration.....................................................................................................................................63
3.4.6 Crossbar-light switch configuration.............................................................................................................64
3.4.7 Peripheral bridge configuration...................................................................................................................65
3.4.8 DMA request multiplexer configuration......................................................................................................66
3.4.9 DMA Controller Configuration...................................................................................................................69
3.4.10 Computer operating properly (COP) watchdog configuration....................................................................70
3.5 Clock modules..............................................................................................................................................................72
3.5.1 MCG configuration......................................................................................................................................72
3.5.2 OSC configuration.......................................................................................................................................73
3.6 Memories and memory interfaces.................................................................................................................................74
3.6.1 Flash memory configuration........................................................................................................................74
3.6.2 Flash memory controller configuration........................................................................................................77
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3.6.3 SRAM configuration....................................................................................................................................77
3.6.4 System Register File Configuration.............................................................................................................80
3.7 Analog...........................................................................................................................................................................80
3.7.1 16-bit SAR ADC configuration...................................................................................................................80
3.7.2 CMP configuration.......................................................................................................................................83
3.7.3 12-bit DAC Configuration...........................................................................................................................86
3.8 Timers...........................................................................................................................................................................87
3.8.1 Timer/PWM module configuration..............................................................................................................87
3.8.2 PIT Configuration........................................................................................................................................90
3.8.3 Low-power timer configuration...................................................................................................................91
3.8.4 RTC configuration.......................................................................................................................................93
3.9 Communication interfaces............................................................................................................................................95
3.9.1 Universal Serial Bus (USB) FS Subsystem.................................................................................................95
3.9.2 SPI configuration.........................................................................................................................................99
3.9.3 I2C configuration.........................................................................................................................................100
3.9.4 UART configuration....................................................................................................................................101
3.9.5 I2S configuration..........................................................................................................................................102
3.10 Human-machine interfaces (HMI)................................................................................................................................106
3.10.1 GPIO configuration......................................................................................................................................106
3.10.2 TSI Configuration........................................................................................................................................108
3.10.3 Segment LCD Configuration.......................................................................................................................110
Chapter 4
Memory Map
4.1 Introduction...................................................................................................................................................................113
4.2 System memory map.....................................................................................................................................................113
4.3 Flash memory map........................................................................................................................................................114
4.3.1 Alternate non-volatile IRC user trim description.........................................................................................114
4.4 SRAM memory map.....................................................................................................................................................115
4.5 Bit Manipulation Engine...............................................................................................................................................115
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4.6 Peripheral bridge (AIPS-Lite) memory map.................................................................................................................116
4.6.1 Read-after-write sequence and required serialization of memory operations..............................................116
4.6.2 Peripheral bridge (AIPS-Lite) memory map................................................................................................117
4.6.3 Modules restricted access in user mode.......................................................................................................120
4.7 Private Peripheral Bus (PPB) memory map..................................................................................................................120
Chapter 5
Clock Distribution
5.1 Introduction...................................................................................................................................................................123
5.2 Programming model......................................................................................................................................................123
5.3 High-level device clocking diagram.............................................................................................................................123
5.4 Clock definitions...........................................................................................................................................................124
5.4.1 Device clock summary.................................................................................................................................125
5.5 Internal clocking requirements.....................................................................................................................................127
5.5.1 Clock divider values after reset....................................................................................................................128
5.5.2 VLPR mode clocking...................................................................................................................................128
5.6 Clock gating..................................................................................................................................................................129
5.7 Module clocks...............................................................................................................................................................129
5.7.1 PMC 1-kHz LPO clock................................................................................................................................130
5.7.2 COP clocking...............................................................................................................................................130
5.7.3 RTC clocking...............................................................................................................................................131
5.7.4 LPTMR clocking..........................................................................................................................................131
5.7.5 TPM clocking...............................................................................................................................................132
5.7.6 USB FS OTG Controller clocking...............................................................................................................132
5.7.7 SPI clocking.................................................................................................................................................133
5.7.8 I2C clocking.................................................................................................................................................133
5.7.9 UART clocking............................................................................................................................................133
5.7.10 I2S/SAI clocking..........................................................................................................................................134
5.7.11 SLCD clocking.............................................................................................................................................135
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Chapter 6
Reset and Boot
6.1 Introduction...................................................................................................................................................................137
6.2 Reset..............................................................................................................................................................................137
6.2.1 Power-on reset (POR)..................................................................................................................................138
6.2.2 System reset sources....................................................................................................................................138
6.2.3 MCU resets..................................................................................................................................................141
6.2.4 RESET_b pin ..............................................................................................................................................143
6.2.5 Debug resets.................................................................................................................................................143
6.3 Boot...............................................................................................................................................................................144
6.3.1 Boot sources.................................................................................................................................................144
6.3.2 FOPT boot options.......................................................................................................................................144
6.3.3 Boot sequence..............................................................................................................................................145
Chapter 7
Power Management
7.1 Introduction...................................................................................................................................................................147
7.2 Clocking modes............................................................................................................................................................147
7.2.1 Partial Stop...................................................................................................................................................147
7.2.2 DMA Wakeup..............................................................................................................................................148
7.2.3 Compute Operation......................................................................................................................................149
7.2.4 Peripheral Doze............................................................................................................................................150
7.2.5 Clock gating.................................................................................................................................................151
7.3 Power modes.................................................................................................................................................................151
7.4 Entering and exiting power modes...............................................................................................................................153
7.5 Module operation in low-power modes........................................................................................................................154
Chapter 8
Security
8.1 Introduction...................................................................................................................................................................159
8.1.1 Flash security...............................................................................................................................................159
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8.1.2 Security interactions with other modules.....................................................................................................159
Chapter 9
Debug
9.1 Introduction...................................................................................................................................................................161
9.2 Debug port pin descriptions..........................................................................................................................................161
9.3 SWD status and control registers..................................................................................................................................162
9.3.1 MDM-AP Control Register..........................................................................................................................163
9.3.2 MDM-AP Status Register............................................................................................................................164
9.4 Debug resets..................................................................................................................................................................166
9.5 Micro Trace Buffer (MTB)...........................................................................................................................................167
9.6 Debug in low-power modes..........................................................................................................................................167
9.7 Debug and security.......................................................................................................................................................168
Chapter 10
Signal Multiplexing and Signal Descriptions
10.1 Introduction...................................................................................................................................................................169
10.2 Signal multiplexing integration....................................................................................................................................169
10.2.1 Port control and interrupt module features..................................................................................................170
10.2.2 Clock gating.................................................................................................................................................171
10.2.3 Signal multiplexing constraints....................................................................................................................171
10.3 Pinout............................................................................................................................................................................171
10.3.1 KL46 Signal Multiplexing and Pin Assignments........................................................................................171
10.3.2 KL46 pinouts................................................................................................................................................175
10.4 Module Signal Description Tables................................................................................................................................179
10.4.1 Core modules...............................................................................................................................................180
10.4.2 System modules...........................................................................................................................................180
10.4.3 Clock modules..............................................................................................................................................180
10.4.4 Memories and memory interfaces................................................................................................................180
10.4.5 Analog..........................................................................................................................................................181
10.4.6 Timer Modules.............................................................................................................................................181
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10.4.7 Communication interfaces...........................................................................................................................182
10.4.8 Human-machine interfaces (HMI)...............................................................................................................184
Chapter 11
Port Control and Interrupts (PORT)
11.1 Introduction...................................................................................................................................................................185
11.2 Overview.......................................................................................................................................................................185
11.2.1 Features........................................................................................................................................................185
11.2.2 Modes of operation......................................................................................................................................186
11.3 External signal description............................................................................................................................................187
11.4 Detailed signal description............................................................................................................................................187
11.5 Memory map and register definition.............................................................................................................................187
11.5.1 Pin Control Register n (PORTx_PCRn).......................................................................................................193
11.5.2 Global Pin Control Low Register (PORTx_GPCLR)..................................................................................195
11.5.3 Global Pin Control High Register (PORTx_GPCHR).................................................................................196
11.5.4 Interrupt Status Flag Register (PORTx_ISFR)............................................................................................196
11.6 Functional description...................................................................................................................................................197
11.6.1 Pin control....................................................................................................................................................197
11.6.2 Global pin control........................................................................................................................................198
11.6.3 External interrupts........................................................................................................................................198
Chapter 12
System Integration Module (SIM)
12.1 Introduction...................................................................................................................................................................201
12.1.1 Features........................................................................................................................................................201
12.2 Memory map and register definition.............................................................................................................................201
12.2.1 System Options Register 1 (SIM_SOPT1)..................................................................................................203
12.2.2 SOPT1 Configuration Register (SIM_SOPT1CFG)....................................................................................204
12.2.3 System Options Register 2 (SIM_SOPT2)..................................................................................................205
12.2.4 System Options Register 4 (SIM_SOPT4)..................................................................................................207
12.2.5 System Options Register 5 (SIM_SOPT5)..................................................................................................209
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12.2.6 System Options Register 7 (SIM_SOPT7)..................................................................................................210
12.2.7 System Device Identification Register (SIM_SDID)...................................................................................212
12.2.8 System Clock Gating Control Register 4 (SIM_SCGC4)............................................................................214
12.2.9 System Clock Gating Control Register 5 (SIM_SCGC5)............................................................................216
12.2.10 System Clock Gating Control Register 6 (SIM_SCGC6)............................................................................218
12.2.11 System Clock Gating Control Register 7 (SIM_SCGC7)............................................................................220
12.2.12 System Clock Divider Register 1 (SIM_CLKDIV1)...................................................................................220
12.2.13 Flash Configuration Register 1 (SIM_FCFG1)...........................................................................................222
12.2.14 Flash Configuration Register 2 (SIM_FCFG2)...........................................................................................223
12.2.15 Unique Identification Register Mid-High (SIM_UIDMH)..........................................................................224
12.2.16 Unique Identification Register Mid Low (SIM_UIDML)...........................................................................224
12.2.17 Unique Identification Register Low (SIM_UIDL)......................................................................................225
12.2.18 COP Control Register (SIM_COPC)...........................................................................................................225
12.2.19 Service COP Register (SIM_SRVCOP)......................................................................................................226
12.3 Functional description...................................................................................................................................................227
Chapter 13
System Mode Controller (SMC)
13.1 Introduction...................................................................................................................................................................229
13.2 Modes of operation.......................................................................................................................................................229
13.3 Memory map and register descriptions.........................................................................................................................231
13.3.1 Power Mode Protection register (SMC_PMPROT).....................................................................................232
13.3.2 Power Mode Control register (SMC_PMCTRL).........................................................................................233
13.3.3 Stop Control Register (SMC_STOPCTRL).................................................................................................234
13.3.4 Power Mode Status register (SMC_PMSTAT)...........................................................................................236
13.4 Functional description...................................................................................................................................................236
13.4.1 Power mode transitions................................................................................................................................236
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13.4.2 Power mode entry/exit sequencing..............................................................................................................239
13.4.3 Run modes....................................................................................................................................................242
13.4.4 Wait modes..................................................................................................................................................243
13.4.5 Stop modes...................................................................................................................................................244
13.4.6 Debug in low power modes.........................................................................................................................247
Chapter 14
Power Management Controller (PMC)
14.1 Introduction...................................................................................................................................................................249
14.2 Features.........................................................................................................................................................................249
14.3 Low-voltage detect (LVD) system................................................................................................................................249
14.3.1 LVD reset operation.....................................................................................................................................250
14.3.2 LVD interrupt operation...............................................................................................................................250
14.3.3 Low-voltage warning (LVW) interrupt operation.......................................................................................250
14.4 I/O retention..................................................................................................................................................................251
14.5 Memory map and register descriptions.........................................................................................................................251
14.5.1 Low Voltage Detect Status And Control 1 register (PMC_LVDSC1)........................................................252
14.5.2 Low Voltage Detect Status And Control 2 register (PMC_LVDSC2)........................................................253
14.5.3 Regulator Status And Control register (PMC_REGSC)..............................................................................254
Chapter 15
Low-Leakage Wakeup Unit (LLWU)
15.1 Introduction...................................................................................................................................................................257
15.1.1 Features........................................................................................................................................................257
15.1.2 Modes of operation......................................................................................................................................258
15.1.3 Block diagram..............................................................................................................................................259
15.2 LLWU signal descriptions............................................................................................................................................259
15.3 Memory map/register definition...................................................................................................................................260
15.3.1 LLWU Pin Enable 1 register (LLWU_PE1)................................................................................................261
15.3.2 LLWU Pin Enable 2 register (LLWU_PE2)................................................................................................262
15.3.3 LLWU Pin Enable 3 register (LLWU_PE3)................................................................................................263
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15.3.4 LLWU Pin Enable 4 register (LLWU_PE4)................................................................................................264
15.3.5 LLWU Module Enable register (LLWU_ME)............................................................................................265
15.3.6 LLWU Flag 1 register (LLWU_F1).............................................................................................................267
15.3.7 LLWU Flag 2 register (LLWU_F2).............................................................................................................268
15.3.8 LLWU Flag 3 register (LLWU_F3).............................................................................................................270
15.3.9 LLWU Pin Filter 1 register (LLWU_FILT1)..............................................................................................272
15.3.10 LLWU Pin Filter 2 register (LLWU_FILT2)..............................................................................................273
15.4 Functional description...................................................................................................................................................274
15.4.1 LLS mode.....................................................................................................................................................275
15.4.2 VLLS modes................................................................................................................................................275
15.4.3 Initialization.................................................................................................................................................275
Chapter 16
Reset Control Module (RCM)
16.1 Introduction...................................................................................................................................................................277
16.2 Reset memory map and register descriptions...............................................................................................................277
16.2.1 System Reset Status Register 0 (RCM_SRS0)............................................................................................278
16.2.2 System Reset Status Register 1 (RCM_SRS1)............................................................................................279
16.2.3 Reset Pin Filter Control register (RCM_RPFC)..........................................................................................280
16.2.4 Reset Pin Filter Width register (RCM_RPFW)...........................................................................................281
Chapter 17
Bit Manipulation Engine (BME)
17.1 Introduction...................................................................................................................................................................283
17.1.1 Overview......................................................................................................................................................284
17.1.2 Features........................................................................................................................................................284
17.1.3 Modes of operation......................................................................................................................................285
17.2 Memory map and register definition.............................................................................................................................285
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17.3 Functional description...................................................................................................................................................285
17.3.1 BME decorated stores..................................................................................................................................286
17.3.2 BME decorated loads...................................................................................................................................293
17.3.3 Additional details on decorated addresses and GPIO accesses....................................................................299
17.4 Application information................................................................................................................................................300
Chapter 18
Miscellaneous Control Module (MCM)
18.1 Introduction...................................................................................................................................................................303
18.1.1 Features........................................................................................................................................................303
18.2 Memory map/register descriptions...............................................................................................................................303
18.2.1 Crossbar Switch (AXBS) Slave Configuration (MCM_PLASC)................................................................304
18.2.2 Crossbar Switch (AXBS) Master Configuration (MCM_PLAMC)............................................................305
18.2.3 Platform Control Register (MCM_PLACR)................................................................................................305
18.2.4 Compute Operation Control Register (MCM_CPO)...................................................................................308
Chapter 19
Micro Trace Buffer (MTB)
19.1 Introduction...................................................................................................................................................................311
19.1.1 Overview......................................................................................................................................................311
19.1.2 Features........................................................................................................................................................314
19.1.3 Modes of operation......................................................................................................................................315
19.2 External signal description............................................................................................................................................315
19.3 Memory map and register definition.............................................................................................................................316
19.3.1 MTB_RAM Memory Map...........................................................................................................................316
19.3.2 MTB_DWT Memory Map...........................................................................................................................329
19.3.3 System ROM Memory Map.........................................................................................................................339
Chapter 20
Crossbar Switch Lite (AXBS-Lite)
20.1 Introduction...................................................................................................................................................................345
20.1.1 Features........................................................................................................................................................345
20.2 Memory Map / Register Definition...............................................................................................................................345
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20.3 Functional Description..................................................................................................................................................346
20.3.1 General operation.........................................................................................................................................346
20.3.2 Arbitration....................................................................................................................................................347
20.4 Initialization/application information...........................................................................................................................348
Chapter 21
Peripheral Bridge (AIPS-Lite)
21.1 Introduction...................................................................................................................................................................349
21.1.1 Features........................................................................................................................................................349
21.1.2 General operation.........................................................................................................................................349
21.2 Functional description...................................................................................................................................................350
21.2.1 Access support.............................................................................................................................................350
Chapter 22
Direct Memory Access Multiplexer (DMAMUX)
22.1 Introduction...................................................................................................................................................................351
22.1.1 Overview......................................................................................................................................................351
22.1.2 Features........................................................................................................................................................352
22.1.3 Modes of operation......................................................................................................................................352
22.2 External signal description............................................................................................................................................353
22.3 Memory map/register definition...................................................................................................................................353
22.3.1 Channel Configuration register (DMAMUXx_CHCFGn)..........................................................................354
22.4 Functional description...................................................................................................................................................355
22.4.1 DMA channels with periodic triggering capability......................................................................................355
22.4.2 DMA channels with no triggering capability...............................................................................................357
22.4.3 Always-enabled DMA sources....................................................................................................................357
22.5 Initialization/application information...........................................................................................................................359
22.5.1 Reset.............................................................................................................................................................359
22.5.2 Enabling and configuring sources................................................................................................................359
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Chapter 23
DMA Controller Module
23.1 Introduction...................................................................................................................................................................363
23.1.1 Overview......................................................................................................................................................363
23.1.2 Features........................................................................................................................................................364
23.2 DMA Transfer Overview..............................................................................................................................................365
23.3 Memory Map/Register Definition.................................................................................................................................366
23.3.1 Source Address Register (DMA_SARn).....................................................................................................367
23.3.2 Destination Address Register (DMA_DARn).............................................................................................368
23.3.3 DMA Status Register / Byte Count Register (DMA_DSR_BCRn).............................................................369
23.3.4 DMA Control Register (DMA_DCRn)........................................................................................................371
23.4 Functional Description..................................................................................................................................................375
23.4.1 Transfer Requests (Cycle-Steal and Continuous Modes)............................................................................375
23.4.2 Channel Initialization and Startup................................................................................................................375
23.4.3 Dual-Address Data Transfer Mode..............................................................................................................377
23.4.4 Advanced Data Transfer Controls: Auto-Alignment...................................................................................378
23.4.5 Termination..................................................................................................................................................379
Chapter 24
Multipurpose Clock Generator (MCG)
24.1 Introduction...................................................................................................................................................................381
24.1.1 Features........................................................................................................................................................381
24.1.2 Modes of Operation.....................................................................................................................................383
24.2 External Signal Description..........................................................................................................................................383
24.3 Memory Map/Register Definition.................................................................................................................................383
24.3.1 MCG Control 1 Register (MCG_C1)...........................................................................................................384
24.3.2 MCG Control 2 Register (MCG_C2)...........................................................................................................385
24.3.3 MCG Control 3 Register (MCG_C3)...........................................................................................................387
24.3.4 MCG Control 4 Register (MCG_C4)...........................................................................................................387
24.3.5 MCG Control 5 Register (MCG_C5)...........................................................................................................389
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24.3.6 MCG Control 6 Register (MCG_C6)...........................................................................................................390
24.3.7 MCG Status Register (MCG_S)..................................................................................................................391
24.3.8 MCG Status and Control Register (MCG_SC)............................................................................................393
24.3.9 MCG Auto Trim Compare Value High Register (MCG_ATCVH)............................................................394
24.3.10 MCG Auto Trim Compare Value Low Register (MCG_ATCVL)..............................................................394
24.3.11 MCG Control 7 Register (MCG_C7)...........................................................................................................395
24.3.12 MCG Control 8 Register (MCG_C8)...........................................................................................................395
24.3.13 MCG Control 9 Register (MCG_C9)...........................................................................................................396
24.3.14 MCG Control 10 Register (MCG_C10).......................................................................................................396
24.4 Functional description...................................................................................................................................................397
24.4.1 MCG mode state diagram............................................................................................................................397
24.4.2 Low Power Bit Usage..................................................................................................................................402
24.4.3 MCG Internal Reference Clocks..................................................................................................................402
24.4.4 External Reference Clock............................................................................................................................403
24.4.5 MCG Fixed frequency clock .......................................................................................................................403
24.4.6 MCG PLL clock ..........................................................................................................................................403
24.4.7 MCG Auto TRIM (ATM)............................................................................................................................404
24.5 Initialization / Application information........................................................................................................................405
24.5.1 MCG module initialization sequence...........................................................................................................405
24.5.2 Using a 32.768 kHz reference......................................................................................................................407
24.5.3 MCG mode switching..................................................................................................................................408
Chapter 25
Oscillator (OSC)
25.1 Introduction...................................................................................................................................................................417
25.2 Features and Modes......................................................................................................................................................417
25.3 Block Diagram..............................................................................................................................................................418
25.4 OSC Signal Descriptions..............................................................................................................................................418
25.5 External Crystal / Resonator Connections....................................................................................................................419
25.6 External Clock Connections.........................................................................................................................................420
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25.7 Memory Map/Register Definitions...............................................................................................................................421
25.7.1 OSC Memory Map/Register Definition.......................................................................................................421
25.8 Functional Description..................................................................................................................................................422
25.8.1 OSC Module States......................................................................................................................................422
25.8.2 OSC Module Modes.....................................................................................................................................424
25.8.3 Counter.........................................................................................................................................................426
25.8.4 Reference Clock Pin Requirements.............................................................................................................426
25.9 Reset..............................................................................................................................................................................426
25.10 Low Power Modes Operation.......................................................................................................................................427
25.11 Interrupts.......................................................................................................................................................................427
Chapter 26
Flash Memory Controller (FMC)
26.1 Introduction...................................................................................................................................................................429
26.1.1 Overview......................................................................................................................................................429
26.1.2 Features........................................................................................................................................................429
26.2 Modes of operation.......................................................................................................................................................430
26.3 External signal description............................................................................................................................................430
26.4 Memory map and register descriptions.........................................................................................................................430
26.5 Functional description...................................................................................................................................................430
Chapter 27
Flash Memory Module (FTFA)
27.1 Introduction...................................................................................................................................................................433
27.1.1 Features........................................................................................................................................................434
27.1.2 Block Diagram.............................................................................................................................................434
27.1.3 Glossary.......................................................................................................................................................435
27.2 External Signal Description..........................................................................................................................................436
27.3 Memory Map and Registers..........................................................................................................................................436
27.3.1 Flash Configuration Field Description.........................................................................................................436
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27.3.2 Program Flash IFR Map...............................................................................................................................437
27.3.3 Register Descriptions...................................................................................................................................438
27.4 Functional Description..................................................................................................................................................446
27.4.1 Flash Protection............................................................................................................................................447
27.4.2 Interrupts......................................................................................................................................................447
27.4.3 Flash Operation in Low-Power Modes........................................................................................................448
27.4.4 Functional Modes of Operation...................................................................................................................448
27.4.5 Flash Reads and Ignored Writes..................................................................................................................448
27.4.6 Read While Write (RWW)...........................................................................................................................449
27.4.7 Flash Program and Erase..............................................................................................................................449
27.4.8 Flash Command Operations.........................................................................................................................449
27.4.9 Margin Read Commands.............................................................................................................................454
27.4.10 Flash Command Description........................................................................................................................455
27.4.11 Security........................................................................................................................................................468
27.4.12 Reset Sequence............................................................................................................................................470
Chapter 28
Analog-to-Digital Converter (ADC)
28.1 Introduction...................................................................................................................................................................471
28.1.1 Features........................................................................................................................................................471
28.1.2 Block diagram..............................................................................................................................................472
28.2 ADC signal descriptions...............................................................................................................................................473
28.2.1 Analog Power (VDDA)...............................................................................................................................474
28.2.2 Analog Ground (VSSA)...............................................................................................................................474
28.2.3 Voltage Reference Select.............................................................................................................................474
28.2.4 Analog Channel Inputs (ADx).....................................................................................................................475
28.2.5 Differential Analog Channel Inputs (DADx)...............................................................................................475
28.3 Memory map and register definitions...........................................................................................................................475
28.3.1 ADC Status and Control Registers 1 (ADCx_SC1n)...................................................................................476
28.3.2 ADC Configuration Register 1 (ADCx_CFG1)...........................................................................................479
KL46 Sub-Family Reference Manual, Rev. 3, July 2013
18 Freescale Semiconductor, Inc.
Section number Title Page
28.3.3 ADC Configuration Register 2 (ADCx_CFG2)...........................................................................................481
28.3.4 ADC Data Result Register (ADCx_Rn).......................................................................................................482
28.3.5 Compare Value Registers (ADCx_CVn).....................................................................................................483
28.3.6 Status and Control Register 2 (ADCx_SC2)................................................................................................484
28.3.7 Status and Control Register 3 (ADCx_SC3)................................................................................................486
28.3.8 ADC Offset Correction Register (ADCx_OFS)...........................................................................................488
28.3.9 ADC Plus-Side Gain Register (ADCx_PG).................................................................................................488
28.3.10 ADC Minus-Side Gain Register (ADCx_MG)............................................................................................489
28.3.11 ADC Plus-Side General Calibration Value Register (ADCx_CLPD).........................................................489
28.3.12 ADC Plus-Side General Calibration Value Register (ADCx_CLPS)..........................................................490
28.3.13 ADC Plus-Side General Calibration Value Register (ADCx_CLP4)..........................................................490
28.3.14 ADC Plus-Side General Calibration Value Register (ADCx_CLP3)..........................................................491
28.3.15 ADC Plus-Side General Calibration Value Register (ADCx_CLP2)..........................................................491
28.3.16 ADC Plus-Side General Calibration Value Register (ADCx_CLP1)..........................................................492
28.3.17 ADC Plus-Side General Calibration Value Register (ADCx_CLP0)..........................................................492
28.3.18 ADC Minus-Side General Calibration Value Register (ADCx_CLMD).....................................................493
28.3.19 ADC Minus-Side General Calibration Value Register (ADCx_CLMS).....................................................493
28.3.20 ADC Minus-Side General Calibration Value Register (ADCx_CLM4).....................................................494
28.3.21 ADC Minus-Side General Calibration Value Register (ADCx_CLM3).....................................................494
28.3.22 ADC Minus-Side General Calibration Value Register (ADCx_CLM2).....................................................495
28.3.23 ADC Minus-Side General Calibration Value Register (ADCx_CLM1).....................................................495
28.3.24 ADC Minus-Side General Calibration Value Register (ADCx_CLM0).....................................................496
28.4 Functional description...................................................................................................................................................496
28.4.1 Clock select and divide control....................................................................................................................497
28.4.2 Voltage reference selection..........................................................................................................................497
28.4.3 Hardware trigger and channel selects..........................................................................................................498
28.4.4 Conversion control.......................................................................................................................................499
28.4.5 Automatic compare function........................................................................................................................507
28.4.6 Calibration function.....................................................................................................................................508
KL46 Sub-Family Reference Manual, Rev. 3, July 2013
Freescale Semiconductor, Inc. 19
Section number Title Page
28.4.7 User-defined offset function........................................................................................................................509
28.4.8 Temperature sensor......................................................................................................................................511
28.4.9 MCU wait mode operation...........................................................................................................................511
28.4.10 MCU Normal Stop mode operation.............................................................................................................512
28.4.11 MCU Low-Power Stop mode operation......................................................................................................513
28.5 Initialization information..............................................................................................................................................513
28.5.1 ADC module initialization example............................................................................................................513
28.6 Application information................................................................................................................................................515
28.6.1 External pins and routing.............................................................................................................................515
28.6.2 Sources of error............................................................................................................................................517
Chapter 29
Comparator (CMP)
29.1 Introduction...................................................................................................................................................................523
29.2 CMP features................................................................................................................................................................523
29.3 6-bit DAC key features.................................................................................................................................................524
29.4 ANMUX key features...................................................................................................................................................525
29.5 CMP, DAC and ANMUX diagram...............................................................................................................................525
29.6 CMP block diagram......................................................................................................................................................526
29.7 Memory map/register definitions..................................................................................................................................528
29.7.1 CMP Control Register 0 (CMPx_CR0).......................................................................................................528
29.7.2 CMP Control Register 1 (CMPx_CR1).......................................................................................................529
29.7.3 CMP Filter Period Register (CMPx_FPR)...................................................................................................531
29.7.4 CMP Status and Control Register (CMPx_SCR).........................................................................................531
29.7.5 DAC Control Register (CMPx_DACCR)....................................................................................................532
29.7.6 MUX Control Register (CMPx_MUXCR)..................................................................................................533
29.8 Functional description...................................................................................................................................................534
29.8.1 CMP functional modes.................................................................................................................................534
29.8.2 Power modes................................................................................................................................................543
29.8.3 Startup and operation...................................................................................................................................544
KL46 Sub-Family Reference Manual, Rev. 3, July 2013
20 Freescale Semiconductor, Inc.
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NXP KL4x Reference guide

Type
Reference guide

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