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Secondary IDE connector (40-pins 2.54mm pitch pin-header with
housing): CN16
Pin # Assignment Pin # Assignment
1 Reset IDE 2 Ground
3 Host Data 7 4 Host Data 8
5 Host Data 6 6 Host Data 9
7 Host Data 5 8 Host Data 10
9 Host Data 4 10 Host Data 11
11 Host Data 3 12 Host Data 12
13 Host Data 2 14 Host Data 13
15 Host Data 1 16 Host Data 14
17 Host Data 0 18 Host Data 15
19 Ground 20 ---
21 DRQ 1 22 Ground
23 Host IOW 24 Ground
25 Host IOR 26 Ground
27 IOCHRDY 28 Host ALE
29 DACK 1 30 Ground
31 IRQ 15 32 NC
33 Address 1 34 Ground
35 Address 0 36 Address 2
37 Chip Select 0 38 Chip Select 1
39 Activity 40 Ground
y Figure:
1
2
40
39