Appendix a <i/o port pin assignment, A.1 <serial ata port, A.2<floppy port – COMMELL FS-A72 User Manual
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FS-A72 User’s Manual
43
Appendix A <I/O Port Pin Assignment>
A.1 <Serial ATA Port>
Connector: S_ATA1/2/3/4/5/6
Type: 7-pin wafer connector
1
2
3
4
5
6
7
GND RSATA_TXP1 RSATA_TXN1 GND RSATA_RXN1 RSATA_RXP1 GND
A.2<Floppy Port>
Connector: FDD
Type: 34-pin (2x 17) 2.54-pitch box header
Pin
Description
Pin
Description
1
Ground
2
DRIVE DENSITY SELECT 0
3
Ground
4
DRIVE DENSITY SELECT 1
5 Ground
6 N/C
7 Ground
8 INDEX-
9
Ground
10
MOTOR ENABLE A-
11
Ground
12
DRIVER SELECT B-
13
Ground
14
DRIVER SELECT A-
15
Ground
16
MOTOR ENABLE B-
17 Ground
18 DIRECTION-
19 Ground
20 STEP-
21 Ground
22 WRITE
DATA-
23 Ground
24 WRITE
GATE-
25 Ground
26 TRACK
0-
27 Ground
28 WRITE
PROTECT-
29 Ground
30 READ
DATA-
31 Ground
32 HEAD
SELECT-
33 Ground
34 DISK
CHANGE-
1
7
2
1
34
33