TABLE 1-2
INTERFACE CONNECTOR PIN ASSIGNMENTS, J1 /P1
CONTROLLER-TO-DISK DRIVE
Ground
Signal
Mnemonic Description
1
2
Connector Clamp
.
-
3
4
Spare
5
6
Select3
(NDS3)
""
9
10
Select 0
(NDS0)
/
11
12
Select 1
(NDS1)
13
14
Select2
(NDS2)
15
16
Drive Motor Enable
(NMOTORON)
17
18
Direction
(DIR)
19
20
Step
(N STEP)
21
22
Write Data
(N WRITE DATA)
23
24
Write Gate
(N WRITE ENABLE)
31
32
Side Select
(N SIDE SELECT)
33
34
Connector Clamp
DISK DRIVE-TO-CONTROLLER
Ground
Signal
Mnemonic Description
7
8
Index
(N INDEX
/
SECTOR)
25
26
Track
00
(NTRK00)
27
28
Write Protect
(N WRITE PROTECT)
29
30
Read Data
(N READ DAT A)
1-12