NCR PC4I, Owner'S Manual

Page: 131 / 167

TECHNICAL DATA
Expansion Slot Connections
A
Function
B
Function
1
- I / O CHECK
1 Ground
2
+ DATA 7
2
+ RESET I/O
3
+ DATA 6
3 +5V
4
+ DATA 5
4
+ IRQ2
5
+ DATA 4
5 —5V
6
+ DATA 3
6 + DRQ2
7
+ DATA 2 7
-1 2 V
8
+ DATA 1 8
— HRQ I/O CH
9
+ DATAO
9 + 12V
10
+ I/O CHAN RDY
10 Ground
11 + BAEN
11 — MEMW
12
+ ADDRESS 19 12
— MEMR
13
+ ADDRESS 18
13 - IO W
14
+ ADDRESS 17 14 - IO R
15
+ ADDRESS 16
15
-D A C K 3
16
+ ADDRESS 15
16 + DRQ3
17
+ ADDRESS 14 17
-D A C K 1
18
+ ADDRESS 13 18
+ DRQ1
19
+ ADDRESS 12
19
—BDACKO
20
+ ADDRESS 11
20
+ BCLK
21
+ ADDRESS 10
21 + IRQ7
22
+ ADDRESS 9 22
+ IRQ6
23
+ ADDRESS 8 23
+ IRQ5
24
+ ADDRESS 7
24
+ IRQ4
25
+ ADDRESS 6 25
+ IRQ3
26
+ ADDRESS 5
26 -D A C K 2
27
+ ADDRESS 4
27
+ T /C
28
+ ADDRESS 3 28
+ ALE
29
+ ADDRESS 2
29 + 5V
30
+ ADDRESS 1 30
+ OSC
31
+ ADDRESS 0
31
Ground
OWNER S MANUAL
8-3