w83c43 Winbond Electronics Corp America, w83c43 Datasheet - Page 12

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

Commands (I/O Address HEX 64) (PS/2 Mode), continued
AC TIMING
NO.
T1
T2
T3
T4
T5
T6
T7
T8
T9
COMMAND
F0-FF
AB
AD
AE
C0
C1
C2
D0
D1
D2
D3
D4
E0
Address Setup Time from WRB
Address Setup Time from RDB
WRB Strobe Width
RDB Strobe Width
Address Hold Time from WRB
Address Hold Time from RDB
Data Setup Time
Data Hold Time
Gate Delay Time from WRB
Interface Test
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
BIT
00
01
02
03
04
DESCRIPTION
No Error Detected
Keyboard "Clock" line is stuck high
Keyboard "Clock" line is stuck low
Keyboard "Data" line is stuck low
Keyboard "Data" line is stuck high
BIT DEFINITION
- 12 -
FUNCTION
MIN.
20
20
50
10
0
0
0
0
0
MAX.
30
W83C43
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS