CG4973AT 参数 Datasheet PDF下载

初步

目录

CY82C693UB

特点................................................................................................................................................... 1

CY82C693UB信号........................................................................................................................... 11

引脚配置................................................................................................................................... 12

CY82C693UB引脚参考（按数字顺序由引脚号） ....................................... ............... 13

CY82C693UB引脚参考（按字母顺序排列信号名称） ....................................... .......... 14

介绍............................................................................................................................................ 17

系统概述............................................................................................................................................. 17

CY82C693UB简介.............................................................................................................................. 17

功能概述.............................................................................................................................. 17

PCI总线接口............................................................................................................................................ 17

ISA总线接口............................................................................................................................................. 18

复位逻辑...................................................................................................................................................... 18

键盘控制器......................................................................................................................................... 19

工作频率....................................................................................................................................................19

重置键盘控制器...............................................................................................................................19

主机接口...............................................................................................................................................................19

PS / 2兼容鼠标支持.................................................................................................................................19

键盘接口.......................................................................................................................................................19

最大的灵活性......................................................................................................................................................19

键盘自检.......................................................................................................................................................19

电源管理逻辑............................................................................................................................... 19

AT刷新逻辑............................................................................................................................................. 20

预读/写后缓冲器........................................................................................................................... 20

BIOS ROM控制.......................................................................................................................................... 20

定时器/计数器逻辑........................................................................................................................................ 20

DMA控制器.............................................................................................................................................. 21

DMA控制器传输模式...................................................................................................................................21

IDE控制器.................................................................................................................................................. 21

实时时钟.............................................................................................................................................. 21

RTC地址地图........................................................................................................................................................22

外置RTC控制...................................................................................................................................................22

中断控制器......................................................................................................................................... 22

NMI源.................................................................................................................................................................23

单机操作.................................................................................................................................... 23

使用外置PCI仲裁器.................................................................................................................................23

分裂GNTBSY .........................................................................................................................................................23

外部复位控制.................................................................................................................................................24

FREQACK旁路..................................................................................................................................................24

32位I / O空间解码..............................................................................................................................................24

1兆字节的ROM解码..................................................................................................................................................24

通用串行总线（ USB ）主机控制器.......................................... .................................................. ........ 24

CY82C693UB信号说明.......................................................................................................... 25

复位信号.................................................................................................................................................. 25

PCI接口信号....................................................................................................................................... 25

ISA接口信号....................................................................................................................................... 27

电源管理信号............................................................................................................................ 33

键盘的接口信号............................................................................................................................. 33

IDE接口信号....................................................................................................................................... 33

USB接口信号..................................................................................................................................... 34

其他信号..................................................................................................................................... 34

hyperCache内存和I / O映射......................................................................................................... 35

CY82C693UB控制寄存器........................................................................................................... 37

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