1 hard disk (ide) connector, 2 fdd port connector (fdd) – Acrosser AR-B1551 User Manual
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AR-B1551 User s Guide
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3.2.1 Hard Disk (IDE) Connector
44-Pin Hard Disk (IDE) Connector (IDE1)
AR-B1551 also provides IDE interface 44-pin connector to connect with the hard disk device.
1
2
44
43
Pin Signal Pin Signal
1 -RESET 2 GROUND
3
DATA 7
4
DATA 8
5
DATA 6
6
DATA 9
7
DATA 5
8
DATA 10
9
DATA 4
10
DATA 11
11
DATA 3
12
DATA 12
13
DATA 2
14
DATA 13
15
DATA 1
16
DATA 14
17
DATA 0
18
DATA 15
19 GROUND 20 NOT
USED
21 IDEDREQ 22 GROUND
23 -IOW
A 24
GROUND
25 -IOR
A 26
GROUND
27 IDEIORDYA 28 GROUND
29 -DACKA 30 GROUND
31 AINT 32
GROUND
33 SA
1 34
Not
Used
35 SA
0 36 SA
2
37 CS
0 38 CS
1
39
HD LED A
40
GROUND
41 VCC 42 VCC
43 GROUND 44 Not
Used
Hard Disk (IDE1) Connector
3.2.2 FDD Port Connector (FDD)
The AR-B1551 provides a 34-pin header type connector for supporting up to two floppy disk drives.
To enable or disable the floppy disk controller, please use the BIOS Setup program.
1
2
34
33
Figure 0-1 CN3: FDD Port connector
Pin Signal Pin Signal
1-33(odd) GROUND
18 DIRECTION
2
DRVEN 0
20
-STEP OUTPUT PULSE
4
NOT USED
22
-WRITE DATA
6
DRVEN 1
24
-WRITE GATE
8 -INDEX
26
-TRACK
0
10
-MOTOR ENABLE 0
28
-WRITE PROTECT
12
-DRIVE SELECT 1
30
-READ DATA
14
-DRIVE SELECT 0
32
-SIDE 1 SELECT
16
-MOTOR ENABLE 1
34
DISK CHANGE
Table 0-1 FDD Pin Assignment