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4.6 Connector Pin Assignments
IDE hard drive connector (CN3)
PCM-3866 IDE hard drive connector
Pin Signal
1
IDE RESET*
3
DATA 7
5
DATA 6
7
DATA 5
9
DATA 4
11
DATA 3
13
DATA 2
15
DATA 1
17
DATA 0
19
SIGNAL GND
21
N/C
23
IO WRITE*
25
IO READ*
27
IO CHANNEL READY
29
N/C
31
IRQ14
33
ADDR 1
35
ADDR 0
37
HARD DISK SELECT 0*
39
N/C
41
VCC
43
GND
* active low
The built-in Enhanced IDE (integrated device electronics) control-
ler supports up to two IDE devices.
The system BIOS can automatically detect the IDE hard disk
intalled in your system.
Pin Signal
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
Chapter 4 The Engine of the PPC-57 (PCM-3866)
GND
DATA 8
DATA 9
DATA 10
DATA 11
DATA 12
DATA 13
DATA 14
DATA 15
N/C
GND
GND
GND
BALE
GND
IOCS16*
N/C
ADDR 2
HARD DISK SELECT 1*
GND
VCC
N/C
41
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