參數(shù)資料
型號: W83977CTF-PW
英文描述: PERIPHERAL (MULTIFUNCTION) CONTROLLER
中文描述: 周邊(多功能)控制器
文件頁數(shù): 89/161頁
文件大小: 592K
代理商: W83977CTF-PW
W83977EF/ CTF
PRELIMINARY
Publication Release Date: March 1999
-80 -
Revision A1
6.4 Commands
COMMAND
FUNCTION
20h
Read Command Byte of Keyboard Controller
60h
Write Command Byte of Keyboard Controller
BIT
1
2
3
4
5
6
7
0
BIT DEFINITION
Reserved
IBM Keyboard Translate Mode
Disable Auxiliary Device
Disable Keyboard
Reserve
System Flag
Enable Auxiliary Interrupt
Enable Keyboard Interrupt
A4h
Test Password
Returns 0Fah if Password is loaded
Returns 0F1h if Password is not loaded
Load Password
Load Password until a "0" is received from the system
Enable Password
Enable the checking of keystrokes for a match with the password
Disable Auxiliary Device Interface
Enable Auxiliary Device Interface
Interface Test
A5h
A6h
A7h
A8h
A9h
Self-test
Returns 055h if self test succeeds
BIT
04
03
02
01
00
BIT DEFINITION
No Error Detected
Auxiliary Device "Clock" line is stuck low
Auxiliary Device "Clock" line is stuck high
Auxiliary Device "Data" line is stuck low
Auxiliary Device "Data" line is stuck low
AAh
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