MEC1322 Datasheet, PDF (4/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
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
DS00001719D-page 4
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