W83C43 Datasheet, PDF (14/21 Pages) Winbond – KEYBOARD CONTROLLER

W83C43
TIMING WAVEFORMS
Write Cycle Timing
A2, CSB
WRB
D0~D7
GA20
OUTPUT PORT
FAST RESET PULSE RC
FE COMMAND
T1
T3
T5
ACTIVE
T7
T8
DATA IN
T9
T17
T18
Read Cycle Timing
A2,CSB
AEN
RDB
D0-D7
T2
T4
T6
ACTIVE
T10
T11
DATA OUT
Send Data to K/B
CLOCK
(KCLK)
SERIAL DATA
(KDAT)
T12
T14
T13
T16
START D0 D1 D2 D3 D4 D5 D6 D7 P _STOP
T19
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