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首页KL25P80M48SF0RM芯片参考手册:详尽解析
KL25P80M48SF0RM芯片参考手册:详尽解析
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更新于2024-07-17
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"KL25P80M48SF0RM芯片手册提供了关于KL25子系列微控制器的详尽信息,涵盖了多个型号,包括MKL25Z32VFM4、MKL25Z64VFM4、MKL25Z128VFM4等。这份由Freescale Semiconductor出版的手册修订版为3,发布于2012年9月。"
本文档主要分为几个章节,详细介绍了KL25子系列微控制器的各项功能和特性。第一章“关于本文档”中,阐述了文档的目的和受众群体,同时也定义了一些通用的文档约定,如编号系统、排版符号和专业术语的解释。
第二章“介绍”中,首先给出了整个文档的概述,并对Kinetis L系列进行了简要介绍。KL25子系列是这一系列的一部分,文档中对其进行了详细的引入。接着,详细列出了模块的功能类别,包括基于ARM Cortex-M0+的核心模块,系统模块,内存和内存接口,时钟系统,安全与完整性模块,模拟模块,定时器模块,通信接口以及人机交互界面。此外,还提供了可订购的部件编号列表,方便用户根据需求选择合适的芯片型号。
第三章“芯片配置”开始深入探讨芯片的具体配置,这部分可能包括了芯片的引脚定义,电源管理,时钟系统配置,以及其他硬件接口的设置方法。虽然具体内容未给出,但可以预期这一章会提供如何配置和优化KL25子系列微控制器性能的详细指南。
第四章至后续章节可能会涵盖更多技术细节,如寄存器描述,中断处理,低功耗模式,调试选项,以及开发工具和软件支持等。这些章节将帮助开发者全面理解并有效地利用这些微控制器进行嵌入式系统设计。
"KL25P80M48SF0RM芯片手册"是一份对KL25子系列微控制器进行全面技术解析的重要参考资料,对于从事相关开发工作的工程师来说,其详细程度和覆盖范围都非常有价值。无论是初学者还是经验丰富的开发者,都能从中获得必要的知识和指导。
Section number Title Page
24.4.3 MCG Internal Reference Clocks..................................................................................................................388
24.4.4 External Reference Clock............................................................................................................................389
24.4.5 MCG Fixed frequency clock .......................................................................................................................389
24.4.6 MCG PLL clock ..........................................................................................................................................390
24.4.7 MCG Auto TRIM (ATM)............................................................................................................................390
24.5 Initialization / Application information........................................................................................................................391
24.5.1 MCG module initialization sequence...........................................................................................................391
24.5.2 Using a 32.768 kHz reference......................................................................................................................393
24.5.3 MCG mode switching..................................................................................................................................394
Chapter 25
Oscillator (OSC)
25.1 Introduction...................................................................................................................................................................405
25.2 Features and Modes......................................................................................................................................................405
25.3 Block Diagram..............................................................................................................................................................406
25.4 OSC Signal Descriptions..............................................................................................................................................406
25.5 External Crystal / Resonator Connections....................................................................................................................407
25.6 External Clock Connections.........................................................................................................................................408
25.7 Memory Map/Register Definitions...............................................................................................................................409
25.7.1 OSC Memory Map/Register Definition.......................................................................................................409
25.8 Functional Description..................................................................................................................................................410
25.8.1 OSC Module States......................................................................................................................................410
25.8.2 OSC Module Modes.....................................................................................................................................412
25.8.3 Counter.........................................................................................................................................................413
25.8.4 Reference Clock Pin Requirements.............................................................................................................413
25.9 Reset..............................................................................................................................................................................414
25.10 Low Power Modes Operation.......................................................................................................................................414
25.11 Interrupts.......................................................................................................................................................................414
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
16 Freescale Semiconductor, Inc.
Section number Title Page
Chapter 26
Flash Memory Controller (FMC)
26.1 Introduction...................................................................................................................................................................415
26.1.1 Overview......................................................................................................................................................415
26.1.2 Features........................................................................................................................................................415
26.2 Modes of operation.......................................................................................................................................................416
26.3 External signal description............................................................................................................................................416
26.4 Memory map and register descriptions.........................................................................................................................416
26.5 Functional description...................................................................................................................................................416
Chapter 27
Flash Memory Module (FTFA)
27.1 Introduction...................................................................................................................................................................419
27.1.1 Features........................................................................................................................................................420
27.1.2 Block Diagram.............................................................................................................................................420
27.1.3 Glossary.......................................................................................................................................................421
27.2 External Signal Description..........................................................................................................................................422
27.3 Memory Map and Registers..........................................................................................................................................422
27.3.1 Flash Configuration Field Description.........................................................................................................422
27.3.2 Program Flash IFR Map...............................................................................................................................423
27.3.3 Register Descriptions...................................................................................................................................424
27.4 Functional Description..................................................................................................................................................432
27.4.1 Flash Protection............................................................................................................................................433
27.4.2 Interrupts......................................................................................................................................................433
27.4.3 Flash Operation in Low-Power Modes........................................................................................................434
27.4.4 Functional Modes of Operation...................................................................................................................434
27.4.5 Flash Reads and Ignored Writes..................................................................................................................434
27.4.6 Read While Write (RWW)...........................................................................................................................435
27.4.7 Flash Program and Erase..............................................................................................................................435
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 17
Section number Title Page
27.4.8 Flash Command Operations.........................................................................................................................435
27.4.9 Margin Read Commands.............................................................................................................................440
27.4.10 Flash Command Description........................................................................................................................441
27.4.11 Security........................................................................................................................................................454
27.4.12 Reset Sequence............................................................................................................................................456
Chapter 28
Analog-to-Digital Converter (ADC)
28.1 Introduction...................................................................................................................................................................457
28.1.1 Features........................................................................................................................................................457
28.1.2 Block diagram..............................................................................................................................................458
28.2 ADC Signal Descriptions..............................................................................................................................................459
28.2.1 Analog Power (VDDA)...............................................................................................................................460
28.2.2 Analog Ground (VSSA)...............................................................................................................................460
28.2.3 Voltage Reference Select.............................................................................................................................460
28.2.4 Analog Channel Inputs (ADx).....................................................................................................................461
28.2.5 Differential Analog Channel Inputs (DADx)...............................................................................................461
28.3 Register definition.........................................................................................................................................................461
28.3.1 ADC Status and Control Registers 1 (ADCx_SC1n)...................................................................................462
28.3.2 ADC Configuration Register 1 (ADCx_CFG1)...........................................................................................465
28.3.3 ADC Configuration Register 2 (ADCx_CFG2)...........................................................................................467
28.3.4 ADC Data Result Register (ADCx_Rn).......................................................................................................468
28.3.5 Compare Value Registers (ADCx_CVn).....................................................................................................469
28.3.6 Status and Control Register 2 (ADCx_SC2)................................................................................................470
28.3.7 Status and Control Register 3 (ADCx_SC3)................................................................................................472
28.3.8 ADC Offset Correction Register (ADCx_OFS)...........................................................................................474
28.3.9 ADC Plus-Side Gain Register (ADCx_PG).................................................................................................474
28.3.10 ADC Minus-Side Gain Register (ADCx_MG)............................................................................................475
28.3.11 ADC Plus-Side General Calibration Value Register (ADCx_CLPD).........................................................475
28.3.12 ADC Plus-Side General Calibration Value Register (ADCx_CLPS)..........................................................476
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
18 Freescale Semiconductor, Inc.
Section number Title Page
28.3.13 ADC Plus-Side General Calibration Value Register (ADCx_CLP4)..........................................................476
28.3.14 ADC Plus-Side General Calibration Value Register (ADCx_CLP3)..........................................................477
28.3.15 ADC Plus-Side General Calibration Value Register (ADCx_CLP2)..........................................................477
28.3.16 ADC Plus-Side General Calibration Value Register (ADCx_CLP1)..........................................................478
28.3.17 ADC Plus-Side General Calibration Value Register (ADCx_CLP0)..........................................................478
28.3.18 ADC Minus-Side General Calibration Value Register (ADCx_CLMD).....................................................479
28.3.19 ADC Minus-Side General Calibration Value Register (ADCx_CLMS).....................................................479
28.3.20 ADC Minus-Side General Calibration Value Register (ADCx_CLM4).....................................................480
28.3.21 ADC Minus-Side General Calibration Value Register (ADCx_CLM3).....................................................480
28.3.22 ADC Minus-Side General Calibration Value Register (ADCx_CLM2).....................................................481
28.3.23 ADC Minus-Side General Calibration Value Register (ADCx_CLM1).....................................................481
28.3.24 ADC Minus-Side General Calibration Value Register (ADCx_CLM0).....................................................482
28.4 Functional description...................................................................................................................................................482
28.4.1 Clock select and divide control....................................................................................................................483
28.4.2 Voltage reference selection..........................................................................................................................483
28.4.3 Hardware trigger and channel selects..........................................................................................................484
28.4.4 Conversion control.......................................................................................................................................485
28.4.5 Automatic compare function........................................................................................................................493
28.4.6 Calibration function.....................................................................................................................................494
28.4.7 User-defined offset function........................................................................................................................495
28.4.8 Temperature sensor......................................................................................................................................497
28.4.9 MCU wait mode operation...........................................................................................................................497
28.4.10 MCU Normal Stop mode operation.............................................................................................................498
28.4.11 MCU Low-Power Stop mode operation......................................................................................................499
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 19
Section number Title Page
28.5 Initialization information..............................................................................................................................................499
28.5.1 ADC module initialization example............................................................................................................499
28.6 Application information................................................................................................................................................501
28.6.1 External pins and routing.............................................................................................................................501
28.6.2 Sources of error............................................................................................................................................503
Chapter 29
Comparator (CMP)
29.1 Introduction...................................................................................................................................................................509
29.2 CMP features................................................................................................................................................................509
29.3 6-bit DAC key features.................................................................................................................................................510
29.4 ANMUX key features...................................................................................................................................................511
29.5 CMP, DAC and ANMUX diagram...............................................................................................................................511
29.6 CMP block diagram......................................................................................................................................................512
29.7 Memory map/register definitions..................................................................................................................................514
29.7.1 CMP Control Register 0 (CMPx_CR0).......................................................................................................514
29.7.2 CMP Control Register 1 (CMPx_CR1).......................................................................................................515
29.7.3 CMP Filter Period Register (CMPx_FPR)...................................................................................................517
29.7.4 CMP Status and Control Register (CMPx_SCR).........................................................................................517
29.7.5 DAC Control Register (CMPx_DACCR)....................................................................................................518
29.7.6 MUX Control Register (CMPx_MUXCR)..................................................................................................519
29.8 Functional description...................................................................................................................................................520
29.8.1 CMP functional modes.................................................................................................................................520
29.8.2 Power modes................................................................................................................................................529
29.8.3 Startup and operation...................................................................................................................................530
29.8.4 Low-pass filter.............................................................................................................................................531
29.9 CMP interrupts..............................................................................................................................................................533
29.10 DMA support................................................................................................................................................................533
29.11 CMP Asyncrhonous DMA support...............................................................................................................................534
29.12 Digital-to-analog converter...........................................................................................................................................534
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
20 Freescale Semiconductor, Inc.
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