W83977F / W83977AF

初步

6.1寄存器地址映射....................................................................................................................93

6.2更新周期.....................................................................................................................................95

6.3寄存器.............................................................................................................................................96

6.3.1注册0Ah.......................................................................................................................................96

6.3.2寄存器值0Bh （读/写） ..................................................................................................................98

6.3.3寄存器0CH （读only)....................................................................................................................99

6.3.4寄存器D（只读） .......................................................................................................................99

6.4 "ON - NOW" CONTROL..........................................................................................................................100

6.5 POWER- ON EVENTS............................................................................................................................100

6.6 POWER-OFF活动..........................................................................................................................100

6.7寄存器...........................................................................................................................................101

6.7.1 "ON - Now"寄存器1 （池Bank2注册49H ） ..................................... ................................................ 101

6.7.2 "On - Now"寄存器2 （池Bank2注册4Ah可） ..................................... ............................................... 102

6.7.3 "On - Now"寄存器3 （池Bank2注册4BH ） ..................................... ................................................. 103

6.7.4 "On - Now"注册4 （池Bank2注册4CH ） ..................................... ................................................. 104

7.键盘控制器.............................................. ...................................... 105

7.1 OUTPUT BUFFER..................................................................................................................................106

7.2输入缓冲器.....................................................................................................................................106

7.3状态寄存器..............................................................................................................................106

7.4 COMMANDS .........................................................................................................................................107

7.5硬件GATEA20 /键盘复位控制逻辑.......................................... ............ 109

7.5.1 KB控制寄存器（逻辑器件5 ， CR- F0 ） ................................... ............................................... 109

7.5.2 92端口控制寄存器（默认值= 0X24 ） ..................................... ......................................... 109

8.通用I / O ........................................... ................................................ 110

8.1基本I / O功能........................................................................................................................111

8.2备用I / O FUNCTIONS.............................................................................................................113

8.2.1中断督导.............................................................................................................................113

8.2.2看门狗定时器Output..................................................................................................................113

8.2.3电源LED.......................................................................................................................................114

8.2.4通用地址译码器...................................................................................................114

8.2.5通用写选..........................................................................................................114

9.即插即用配置............................................ ......................... 114

9.1履约PNP........................................................................................................................................115

-V -

出版日期： 1998年3月

初步修订0.58