User`s manual

TABLE 3-10
1/0 PORT AND TIMER CONNECTOR J5 PIN ASSIGNMENTS
ASSIGNMENT
PIN PIN
MARKING ASSIGNMENT
P2BH-4 1 2
1
P2BH-5
P2BH-2 3
4
PORT 2BH P2BH-3
P2BH-0 5
6
J
P2BH-1
P2AH-6 7 8
l
P2AH-7
P2AH-4
9
10
P2AH-5
PORT 2AH
P2AH-2
11 12
J
P2AH-3
P2AH-0
13
14
P2AH-1
O')QU a.
11::
I
... ""
-,
P29H-7
I L.oJ I I-V
I~ 10
r
P29H-4 17
18
P29H-5
PORT 29H
P29H-2 19
20
J
P29H-3
P29H-0 21
22
P29H-1
-
Timer OUT 23
24
TIMER
Timer In
II
I
OUT/IN
GROUND
25
26
GROUND
i Ii I i
Note:
Port 29H is Port A }
Port 2AH is Port B
of expansion RAM 8155 (A 17).
Port 2BH
is Port C
Timer is on the same 8155 (A 17).
3-12