March Products 120 III (PC620) User Manual
Page 67
User Manual version 2503
LIBRA 120 III (PC620 Intel 815E)
4-57
4.1.5.7. IDE1/IDE2: Primary/Secondary HDD
The PC620 provides 2 sets of 40-pin IDE connectors. The
built-in high speed PCI IDE controller supports both PIO and
ATA 100 mode. Up to four IDE devices can be connected,
including large hard disks, CD-ROM drives and other IDE
devices. Their corresponding pin assignments are listed
below:
Pin # Signal
Pin # Signal
1
RESET#
2
GND
3
DATA 7
4
DATA 8
5
DATA 6
6
DATA 9
7
DATA 5
8
DATA10
9
DATA 4
10 DATA11
11 DATA 3
12 DATA12
13 DATA 2
14 DATA13
15 DATA 1
16 DATA14
17 DATA 0
18 DATA15
19 GND
20 NC
21 IDEREQ
22 GND
23 IOW#
24 GND
25 IOR#
26 GND
27 ICHRDY#
28 GND
29 DACK
30 GND
31 IDEIRQ
32 NC
33 A1
34 LID
35 A0
36 A2
37 IDECS0
38 IDECS1
39 HDD LED
40 GND
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