目录
特点........................................................................................................................................1
概述.................................................................................................................2
PIN CONFIGURATION.......................................................................................................................5
引脚功能说明.............................................. .................................................. 0.6
多功能引脚说明.............................................. ....................................... 10
功能DESCRIPTION..........................................................................................................12
SUPER I / O寄存器..................................................................................................................12
主处理器INTERFACE....................................................................................................12
FLOPPY DISK CONTROLLER.........................................................................................................13
FDC内部REGISTERS...........................................................................................................13
COMMAND SET/DESCRIPTIONS....................................................................................................37
指令集.........................................................................................................................41
串行端口(UART).....................................................................................................................67
红外接口..................................................................................................................81
FAST IR ...........................................................................................................................................82
并行PORT............................................................................................................................84
IBM XT / AT兼容，双向和EPP模式...................................... .............. 86
扩展功能并行端口.............................................. ................................... 93
自动通电MANAGEMENT.....................................................................................................109
SERIAL IRQ...................................................................................................................................114
GP变址寄存器.................................................................................................................119
看门狗定时器.....................................................................................................................121
8042键盘控制器说明.............................................. ........................... 122
系统管理中断（ SMI ） ............................................ .................................... 131
配置.........................................................................................................................132
3
SMSC [ SMSC CORPORATION ]
