NEC EXPRESS 5800 ES1400 SERIES Online Service Manual page 196

IDE
Pin Signal
1 RESET_L
2 GND
3 DD7
4 DD8
5 DD6
6 DD9
7 DD5
8 DD10
9 DD4
10 DD11
11 DD3
12 DD12
13 DD2
14 DD13
15 DD1
16 DD14
17 DD0
18 DD15
19 GND
20 Keyed
D-12 Connectors
IDE Connector Pinout
Pin Signal
21 IDEDRQ
22 GND
23 DIOW_L
24 GND
25 DIOR_L
26 GND
27 IORDY
28
CSEL (1 K
29 IDEDAK_L
30 GND
31 IDEIRQ
32 Reserved (N/C)
33 IDESA1
34 PDIAG_L (tied to GND)
35 IDESA0
36 IDESA2
37 IDECS1_L
38 IDECS3_L
39 IDEHDACT_L
40 GND
p/d)