Ide Connectors - IBM PC 300GL Technical Information Manual

IDE connectors

Table 23. IDE connector pin assignments
Pin Signal
1 RESET
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
15 Data bus bit 1
16 Data bus bit 14
17 Data bus bit 0
18 Data bus bit 15
19 Ground
20 Key (Reserved)
42
PC 300 GL and 300 PL
2
1
I/O
O
N/A
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
N/A
N/A
Pin Signal
21 NC
22 Ground
23 I/O write
24 NC
25 I/O read
26 Ground
27 I/O channel ready I
28 ALE
29 NC
30 Ground
31 IRQ
32 CS16#
33 SA1
34 PDIAG#
35 SA0
36 SA2
37 CS0#
38 CS1
39 Active#
40 Ground
40
39
I/O
N/A
N/A
O
N/A
O
I
O
N/A
N/A
I
I
O
I
O
O
O
O
I
N/A