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W83C43 Datasheet(PDF) 10 Page - Winbond

Part # W83C43
Description  KEYBOARD CONTROLLER
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W83C43 Datasheet(HTML) 10 Page - Winbond

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W83C43
- 10 -
Output Port Definition, continued
BIT
FUNCTION
4
Keyboard Output Buffer Full Interrupt
5
Mouse Output Buffer Full Interrupt
6
Keyboard Clock Output
7
Keyboard Data Output
Test-input Port Definition
BIT
FUNCTION
0
Keyboard Clock Input
1
Mouse Clock Input
Commands (I/O Address HEX 64) (AT Mode)
COMMAND
FUNCTION
20
Read Command Byte of Keyboard Controller
60
Write Command Byte of Keyboard Controller
BIT
1
2
3
4
5
6
7
0
BIT DEFINITION
Reserved
IBM PC Compatible Mode
IBM PC Mode
Disable Keyboard
Inhibit Override
System Flag
Reserved
Enable Output Buffer Full Interrupt
AA
Self-test
AB
Interface Test
BIT
04
03
02
01
00
BIT DEFINITION
No Error Detected
K/B Clock Line is Stuck Low
K/B Clock Line is Stuck High
K/B Data Line is Stuck Low
K/B Data Line is Stuck High
AD
Disable Keyboard Feature
AE
Enable Keyboard Interface


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