MEC1322 datasheet(4/456 Pages) MICROCHIP

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MEC1322

DS00001719D-page 4

 2014 - 2015 Microchip Technology Inc.

Table of Contents

1.0 Pin Configuration ............................................................................................................................................................................. 5

2.0 Block Overview ............................................................................................................................................................................. 45

3.0 Power, Clocks, and Resets ........................................................................................................................................................... 48

4.0 VBAT Register Bank ..................................................................................................................................................................... 72

5.0 LPC Interface ................................................................................................................................................................................ 75

6.0 Chip Configuration ........................................................................................................................................................................ 99

7.0 ARM M4F Based Embedded Controller ...................................................................................................................................... 103

8.0 RAM and ROM ............................................................................................................................................................................ 112

9.0 Embedded Memory Interface (EMI) ............................................................................................................................................ 114

10.0 ACPI Embedded Controller Interface (ACPI-ECI) ..................................................................................................................... 128

11.0 8042 Emulated Keyboard Controller ......................................................................................................................................... 145

12.0 Mailbox Interface ....................................................................................................................................................................... 162

13.0 ACPI PM1 Block Interface ......................................................................................................................................................... 170

14.0 UART ........................................................................................................................................................................................ 178

15.0 EC Interrupt Aggregator ............................................................................................................................................................ 192

16.0 Watchdog Timer (WDT) ............................................................................................................................................................ 218

17.0 Basic Timer ............................................................................................................................................................................... 222

18.0 Hibernation Timer ...................................................................................................................................................................... 228

19.0 RTC With Date and DST Adjustment ........................................................................................................................................ 231

20.0 GPIO Interface .......................................................................................................................................................................... 243

21.0 Internal DMA Controller ............................................................................................................................................................. 258

22.0 SMBus Interface ........................................................................................................................................................................ 272

23.0 PECI Interface ........................................................................................................................................................................... 275

24.0 TACH ........................................................................................................................................................................................ 278

25.0 PWM ......................................................................................................................................................................................... 285

26.0 RPM-PWM Interface ................................................................................................................................................................. 290

27.0 General Purpose Serial Peripheral Interface ............................................................................................................................ 308

28.0 Blinking/Breathing PWM ........................................................................................................................................................... 327

29.0 PS/2 Interface ........................................................................................................................................................................... 343

30.0 Keyboard Scan Interface ........................................................................................................................................................... 351

31.0 BC-Link Master ......................................................................................................................................................................... 358

32.0 Trace FIFO Debug Port (TFDP) ................................................................................................................................................ 364

33.0 Analog to Digital Converter ....................................................................................................................................................... 368

34.0 VBAT-Powered RAM ................................................................................................................................................................ 375

35.0 EC Subsystem Registers .......................................................................................................................................................... 378

36.0 Test Mechanisms ...................................................................................................................................................................... 382

37.0 Electrical Specifications ............................................................................................................................................................ 389

38.0 Timing Diagrams ....................................................................................................................................................................... 397

39.0 Memory Map ............................................................................................................................................................................. 423

Appendix A: Revision History ............................................................................................................................................................ 452

The Microchip Web Site .................................................................................................................................................................... 453

Customer Change Notification Service ............................................................................................................................................. 453

Customer Support ............................................................................................................................................................................. 453

Product Identification System ............................................................................................................................................................ 454

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