A-12 Connector Pin Assignments
STORAGE DEVICE CONNECTORS
The following subsections provide information about the connectors on the riser board for
the diskette drive and IDE hard disks.
Diskette Drive Connector
Table A-13 lists pin assignments for the riser board diskette drive connector.
Table A-13 Diskette Drive Pin Assignments
Pin
Signal Name
Pin
Signal Name
1
Ground
2
DENSEL
3
Ground
4
Reserved
5
Key
6
DRATE0 –
7
Ground
8
Index –
9
Ground
10
Motor Enable A –
11
Ground
12
Drive Select B –
13
Ground
14
Drive Select A –
15
Ground
16
Motor Enable B –
17
MSEN1
18
DIR –
19
Ground
20
STEP –
21
Ground
22
Write Data –
23
Ground
24
Write Gate –
25
Ground
26
Track 00 –
27
MSEN0
28
Write Protect –
29
Ground
30
Read Data –
31
Ground
32
HDSEL –
33
Ground
34
DSKCHG –