F81867 Datasheet, PDF (88/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

Write Command Byte
BIT
DESCRIPTION
0
Enable Keyboard Interrupt
1
Enable Mouse Interrupt
2
System flag
60h
3
Reserve
4
Disable Keyboard Interface
5
Disable Mouse interface
6
IBM keyboard Translate Mode
7
Reserve
F81867
A7h
Disable Auxiliary Device Interface
A8h
Enable Auxiliary Device Interface
Auxiliary Interface Test
8’h00: indicate Auxiliary interface is ok.
8’h01: indicate Auxiliary clock is low.
A9h
8’h02: indicate Auxiliary clock is high
8’h03: indicate Auxiliary data is low
8’h04: indicate Auxiliary data is high
Self-test
AAh
Return 55h if self test succeeds
keyboard Interface Test
8’h00: indicate keyboard interface is ok.
8’h01: indicate keyboard clock is low.
ABh
8’h02: indicate keyboard clock is high
8’h03: indicate keyboard data is low
8’h04: indicate keyboard data is high
ADh
Disable Keyboard Interface
AEh
Enable Keyboard Interface
C0h
Read Input Port(P1) and send data to the system
C1h
Continuously puts the lower four bits of Port1 into STATUS register
C2h
Continuously puts the upper four bits of Port1 into STATUS register
CAh
Read the data written by CBh command.
CBh
Written a scratch data. This byte could be read by CAh command.
D0h
Send Port2 value to the system
D1h
Only set/reset GateA20 line based on the system data bit 1
D2h
Send data back to the system as if it came from Keyboard
D3h
Send data back to the system as if it came from Muse
D4h
Output next received byte of data from system to Mouse
FEh
Low pulse on KBRST# about 6μS
KBC Command Description
88
Dec, 2011
V0.12P