W83977F / W83977AF

初步

目录

1. PIN DESCRIPTION........................................................................................................6

1.1 HOST INTERFACE....................................................................................................................................6

1.2先进的电源MANAGEMENT....................................................................................................8

1.3串口INTERFACE......................................................................................................................9

1.4红外INTERFACE.........................................................................................................................10

1.5多模式并行端口..........................................................................................................11

1.6 FDC接口....................................................................................................................................16

1.7 KBC INTERFACE....................................................................................................................................17

1.8 RTC接口....................................................................................................................................17

1.9电源引脚...........................................................................................................................................17

2. FDC功能说明............................................. .............................. 18

2.1 W83977F / AF FDC ...................................................................................................................................18

2.1.1 AT interface........................................................................................................................................18

2.1.2 FIFO （数据） .......................................................................................................................................18

2.1.3数据Separator...................................................................................................................................19

2.1.4写Precompensation.......................................................................................................................19

2.1.5垂直记录模式..........................................................................................................19

2.1.6 FDC Core...........................................................................................................................................20

2.1.7 FDC命令.................................................................................................................................20

2.2注册DESCRIPTIONS....................................................................................................................31

2.2.1状态寄存器A（ SA寄存器） （读基址+ 0 ） ................................. ................................... 31

2.2.2状态寄存器B （ SB寄存器） （读基址+ 1 ） ................................. ................................... 33

2.2.3数字输出寄存器（ DO寄存器） （写入基址+ 2 ） ................................. ........................ 35

2.2.4磁带驱动器寄存器（ TD寄存器） （读基址+ 3 ） ................................. .............................. 35

2.2.5主状态寄存器（ MS寄存器） （读基址+ 4 ） ................................. ............................. 36

2.2.6数据速率寄存器（ DR寄存器） （写入基址+ 4 ） ................................. ............................... 36

2.2.7 FIFO寄存器（ R / W基址+ 5 ） .................................... .................................................. ......... 38

2.2.8数字输入寄存器（ DI寄存器） （读基址+ 7 ） ................................. ............................ 40

-I -

出版日期： 1998年3月

初步修订0.58