COMMAND
AB
Interface Test
FUNCTION
BIT
BIT DEFINITION
00
No Error Detected
01
Keyboard "Clock" line is stuck low
02
Keyboard "Clock" line is stuck high
03
Keyboard "Data" line is stuck low
04
Keyboard "Data" line is stuck high
AD
AE
C0
C1
C2
D0
D1
D2
D3
D4
E0
F0-FF
Disable Keyboard Interface
Enable Keyboard Interface
Read Input Port
Poll Input Port Low
Poll Input Port High
Read Output Port
Write Output Port
Write Keyboard Output Buffer
Write Auxiliary Device Output Buffer
Write to Auxiliary Device
Read Test Inputs
Pulse Output Port
13