W83C43 Datasheet, PDF (16/21 Pages) Winbond – KEYBOARD CONTROLLER

PS2 Mode's Mode Detect
(P10 released to high by keyboard before RESET goes high)
RESET
P27
P10
T31
T33
T32
W83C43
PS2 Mode's Mode Detect
(P10 released to high by keyboard after RESET goes high)
RESET
P27
P10
T31
T30
T32
AT Mode's Mode Detect
(P10 internal pull high. As there is no external loop between P27 and P10 so P27 issues pulse until
time out )
RESET
P27
T33
P10
T34
T31
T32
- 16 -