Keyboard Connector Pin Assignments - HP Vectra Reference Manual

Table 4.1
Keyboard Connector Pin Assignments
Pin Assignment
1
+
12 Vdc
2 Serial
In
3 Serial Out
4
Ground
Keyboard Interface
, . - - - - - - - - - - - - A20 GATE ENABLES
PROTECTED MODE
ADDRESS LINE
HP8041
r - - -........ 69H
P21
_ _ _ _----I
TEST 0
_PA_2
----I
AO COMMAND
DO-D7
+5
KBINH
u--......... - - t P27
SECURITY
LOCK
HPINT
CERB/NT
OBFINT
-CERBNMI
6AH
tNT
NMI
P20 ~---------RC
TEST1 ....._ _......
-INT HP
OBF INT
AP 60 Hz
AP
00-07
68H
64H
60H
SCAN CODE--
HP-HIL CONTROLLER
~
COMMANDS '---_ _......_ _...
00-07
_ _---' HPHIL
Figure 13
58 Keyboard Interface