增强的超级I / O控制器，提供快速IR
数据表
8.4
8.5
增强DUMPREG................................................................................................................................61
Compatibility...............................................................................................................................................62
第九章
串口（ UART ） ............................................................................................................... 63
9.1
注册说明...................................................................................................................................63
9.1.1
接收缓冲寄存器（ RB） ..............................................................................................................64
9.1.2
发送缓冲寄存器（ TB） .............................................................................................................64
9.1.3
中断使能寄存器（ IER ） ...........................................................................................................64
9.1.4
FIFO控制寄存器（ FCR ） ..............................................................................................................65
9.1.5
中断识别寄存器（ IIR ） ...................................................................................................65
9.1.6
线路控制寄存器（ LCR ） ................................................................................................................67
9.1.7
调制解调器控制寄存器(MCR)..........................................................................................................68
9.1.8
线路状态寄存器（ LSR ） .................................................................................................................69
9.1.9
Modem状态寄存器（ MSR ） ...........................................................................................................71
9.1.10
暂存寄存器（ SCR） .............................................................................................................72
9.2
可编程的波特率发生器（与除数锁存DLH ， DLL ） ..................................... ............... 72
9.2.1
效应对寄存器复位File...................................................................................................72
9.3
FIFO中断模式运行..................................................................................................................72
9.4
FIFO查询模式操作.....................................................................................................................73
9.5
串行端口操作的注意事项..................................................................................................................76
9.5.1
FIFO模式操作： ........................................................................................................................76
第10章
第11章
第12章
红外接口.................................................................................................................. 78
快速红外线.................................................................................................................................. 79
并行Port.......................................................................................................................... 80
12.1
IBM XT / AT兼容，双向和EPP模式...................................... ................................... 81
12.2
扩展功能并行Port.........................................................................................................87
12.2.1
Vocabulary.......................................................................................................................................87
12.3
ISA实施Standard.................................................................................................................88
12.3.1
寄存器定义.........................................................................................................................90
12.4
Operation................................................................................................................................................96
12.4.1
模式切换/软件Control....................................................................................................96
12.4.2
数据Compression...........................................................................................................................97
12.4.3
针脚定义...................................................................................................................................97
12.4.4
ISA Connections..............................................................................................................................97
12.4.5
中断.........................................................................................................................................98
12.4.6
FIFO Operation................................................................................................................................98
12.5
DMA Transfers........................................................................................................................................98
12.5.1
可编程I / O模式或非DMA模式........................................ ............................................. 99
12.5.2
可编程I / O - 转会从FIFO到主机...................................... ............................ 99
12.5.3
可编程I / O - 从主机传输到FIFO ...................................... .......................... 100
12.6
并行端口软盘控制器......................................................................................................100
第13章
第14章
自动开机Management................................................................................................... 102
串行IRQ........................................................................................................................... 106
14.1
串行中断....................................................................................................................................106
14.1.1
时序图IRQSER周期............................................. ............................................... 106
14.1.2
IRQSER周期控制..................................................................................................................107
14.1.3
IRQSER数据Frame.....................................................................................................................108
14.1.4
停止循环Control.........................................................................................................................108
14.1.5
潜伏..........................................................................................................................................109
14.1.6
EOI / ISR读延迟..................................................................................................................109
14.1.7
AC / DC规格问题............................................................................................................109
14.1.8
复位和初始化..................................................................................................................109
第15章
第16章
第17章
GP变址寄存器............................................................................................................ 110
看门狗定时器............................................................................................................... 111
8042键盘控制器说明.............................................. ................................. 112
17.1
键盘ISA Interface.........................................................................................................................112
17.1.1
键盘的数据写入.....................................................................................................................113
17.1.2
键盘数据读取.....................................................................................................................113
17.1.3
键盘命令写............................................................................................................113
17.1.4
键盘状态读..................................................................................................................113
SMSC FDC37C672
第5页
牧师03年10月29日
初步数据表
SMSC [ SMSC CORPORATION ]
