Acrosser Technology AR-B1479 - FDD Port Connector (CN4)

AR-B1479 User’s Guide
16
(2) 44-Pin Hard Disk (IDE) Connector (IDE2)
AR-B1479 also provides 44-pin connector (IDE2) interface to connect with the hard disk device. Furthermore, user
could also apply AR-B9462A (option) to connect with Compact Flash storage device.
44
43
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2
Hard Disk (IDE2) Connector
3.2.2 FDD Port Connector (CN4)
The AR-B1479 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.
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2
Figure 0-1 CN4: 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
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