w83c43 Winbond Electronics Corp America, w83c43 Datasheet - Page 9

• Manufacturer Part Number: w83c43
• Description: Keyboard Controller
• Manufacturer: Winbond Electronics Corp America

Status Register (PS/2 Mode), continued
Input Port Definition
Output Port Definition
BIT
3
4
5
6
7
BIT
BIT
0
1
2
3
4
5
6
7
0
1
2
3
Command/Data
Inhinit Switch
Auxiliary Device Output
Buffer
General Purpose Time-
out
Parity Error
BIT FUNCTION
Keyboard Data Input
Mouse Data Input
Undefined
Undefined
RAM on System Board
0: Disable second 256 KB of system board RAM
1: Enable second 256 KB of system board RAM
Manufacturing Jumper
0: Manufacturing jumper
1: Jumper not installed
Display Type Switch
0: Primary display attached to color/graphics
1: Primary display attached to monochrome
Keyboard Input Switch
0: Keyboard inhibited
1: Keyboard not inhibited
System Reset
Gate A20
Mouse Data Output
Mouse Clock Output
0: Data byte
1: Command byte
0: Keyboard is inhibited
1: Keyboard is not inhibited
0: Auxiliary device output buffer empty
1: Auxiliary device output buffer full
0: No time-out error
1: Time-out error
0: Odd parity
1: Even parity (error)
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FUNCTION
FUNCTION
DESCRIPTION
Publication Release Date: January 1996
W83C43
Revision A2