AR-B1462 User¡¦s Guide
3-3
3.2.2 Hard Disk (IDE) Connector(1) 40-Pin Hard Disk (IDE) Connector (CN5)
A 40-pin header type connector (CN5) is provided to interface with up to two embedded hard disk drives (IDE AT
bus). This interface, through a 40-pin cable, allows the user to connect up to two drives in a “daisy chain” fashion.
To enable or disable the hard disk controller, please use the BIOS Setup program. The following table illustrates
the pin assignments of the hard disk drive’s 40-pin connector.
-IDERST 1 2 GROUND
D0 17
D7 3
D6 5
D1 15
D5 7
D4 9
D3 11
D2 13
GROUND 19
Not Used 21
-IOR 25
-IORDY 27
Not Used 29
-IOW 23
HDA1 33
-HDCS0 37
HDA0 35
-HDLED 39
IRQ 14 31
4 D8
16 D14
14 D13
12 D12
10 D11
8 D10
6 D9
28 Not Used
32 -IO16
30 GROUND
26 GROUND
24 GROUND
22 GROUND
20 Not Used
18 D15
34 Not Used
36 HDA2
38 -HDCS1
40 GROUND
CN5
Figure 3-3 CN5: Hard Disk (IDE) Connector
Caution: When the CN5 is used to connect the hard disk drive, if you find it can not make partition, please
change the hard disk cable to below 35cm in length.
(2) 44-Pin Hard Disk (IDE) Connector (CN7)
AR-B1462 also provides IDE interface 44-pin connector to connect with the hard disk device.
-IDERST 1 2 GROUND
D0 17
D7 3
D6 5
D1 15
D5 7
D4 9
D3 11
D2 13
GROUND 19
Not Used 21
-IOR 25
-IORDY 27
Not Used 29
-IOW 23
HDA1 33
-HDCS0 37
HDA0 35
-HDLED 39
IRQ 14 31
4 D8
16 D14
14 D13
12 D12
10 D11
8 D10
6 D9
28 Not Used
32 -IO16
30 GROUND
26 GROUND
24 GROUND
22 GROUND
20 Not Used
18 D15
34 Not Used
36 HDA2
38 -HDCS1
40 GROUND
CN7
VCC 41
GROUND 43
42 VCC
44 Not Used