ZiLOG System 8000

HRM
Zilog HRM
Table 2-12.
Winchester
Disk
Controller Connector
P2/J23,
Slot
3 (Model 21
Only)
Row A
Row B Row C
PIN
SIGNAL
SIGNAL
SIGNAL
1
CBO
2
CB2
CB1
3
CB3
4
CB5
CB4
GND
5
CB6
6
DIRECTION\
CB7
7
CWDO\
GND
8
CWD1\
9
CYACK\
ATTN\
10
INDEX\
11
SECTOR\
GND
12
WRITE CLK\
SEEKEND\
13
DRIVEFAULT\
WRITE-CLK
14
SYSTEMCLK
ATTACK
15
UNITACKO\ SYSTEMCLK\ GND
16
BI-DATA\
UNITACK1\
17
UNITACK2\
BI-DATA
18
READ-ENABLE\
UNITACK3\
19
MASTER RESET\ READ ENABLE GND
20
WRITE ENABLE
WRITE ENABLE\
21
22
23
GND
24
25
26
27
28
+5v
+5v +5v
29 -5v
-5v
-5v
30
+12v +12v +12v
31
-12v
-12v
-12v
32
GND GND GND
2-18
Zilog
2-18