KB3700

KB3700 Keyboard Controller Datasheet4.8 LPC..................................................................................................................................... 224.8.1 LPC / FWH Functional Description ................................................................................ 224.8.1.1 LPC Decoding IO Ports................................................................................................ 224.8.1.2 LPC Decoding Memory Space...................................................................................... 224.8.2 LPC Registers Descriptions (Base address = FE90h, 16 bytes)...................................... 224.9 PS / 2 INTERFACE ................................................................................................................. 244.9.1 PS/2 Functional Description............................................................................................ 244.9.2 PS2 Registers Descriptions (Base Address = FEE0h, 32 bytes)...................................... 244.10 EC..................................................................................................................................... 264.10.1 EC Functional Description ............................................................................................ 264.10.1.1 Hardware EC Commands ................................................................................................................ 264.10.1.2 EC Status Register............................................................................................................................. 264.10.1.3 EC Command Register ..................................................................................................................... 264.10.1.4 EC Command Program Sequence ................................................................................................... 274.10.1.5 EC Index IO Mode ............................................................................................................................ 274.10.1.6 SCI Generation.................................................................................................................................. 274.10.1.7 SCI ID Table ...................................................................................................................................... 284.10.2 EC Register Descriptions (Base Address = FF00h, 32 bytes) ....................................... 284.11 GPWU............................................................................................................................... 324.11.1 GPWU Functional Description...................................................................................... 324.11.2 GPWU Register Descriptions (Base Address = FF30h, 96 bytes) ................................. 324.12 8051 MICROPROCESSOR .................................................................................................... 324.12.1 Interrupt Vectors Table................................................................................................... 324.12.2 SFR Map ........................................................................................................................ 334.12.3 SFR Descriptions ........................................................................................................... 345. ELECTRONIC CHARACTERISTICS ................................................................... 375.1 ABSOLUTE MAXIMUM RATING................................................................................................ 375.2 RECOMMENDED OPERATING CONDITION ................................................................................ 375.3 OPERATING CURRENT........................................................................................................... 376. PACKAGING INFORMATION ............................................................................... 396.1 64 LQFP ............................................................................................................................. 397. REVISION HISTORY ............................................................................................... 40Copyright©2006, ENE Technology Inc. 3