Ide Connectors - IBM NetVista Technical Information Manual

Table 18. Diskette drive connector-pin assignments

IDE connectors

Table 19. IDE connector-pin assignments
Pin Signal
6 Data rate 0
7 Ground
8 Index#
9 Reserved
10 Motor enable 0#
11 Ground
12 Drive select 1#
13 Ground
14 Drive select 0#
15 Ground
16 Motor enable 1#
17 N/C
2
1
Pin Signal
1 N/C
2 Ground
3 Data bus bit 7
4 Data bus bit 8
5 Data bus bit 6
6 Data bus bit 9
7 Data bus bit 5
8 Data bus bit 10
9 Data bus bit 4
10 Data bus bit 11
11 Data bus bit 3
12 Data bus bit 12
13 Data bus bit 2
14 Data bus bit 13
I/O Pin
23 Ground
24 Write enable#
25 Ground
26 Track0#
O 27 Ground
28 Write protect#
O 29 Ground
30 Read data#
O 31 Ground
32 Head 1 select#
O 33 Ground
I 34 Diskette change#
I/O Pin
O 21 SDDREQ
22 Ground
I/O 23 I/O write
I/O 24 Ground
I/O 25 I/O read
I/O 26 Ground
I/O 27 I/O channel ready
I/O 28 Ground
I/O 29 DMAACK
I/O 30 Ground
I/O 31 IRQ
I/O 32 CS16#
I/O 33 SA1
I/O 34 IDE66 detect
Appendix A. Connector-pin assignments
Signal I/O
O
I
I
I
I
O
O
I
40
39
Signal I/O
O
O
I
O
I
I
O
I
33