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SHB102 LGA775 SBC User's Manual
2.4.9
Floppy Disk Port Connector (CN1)
The board provides a 34-pin header type connector, CN1, supporting up to two floppy
drives. The floppy drives may be any one of the following types: 5.25" 360KB/1.2MB and
3.5" 720KB/1.44MB/2.88MB.
Pin
Signal
1
GND
4
No connector
7
GND
10
Motor enable A#
13
GND
16
No connector
19
GND
22
Write data#
25
GND
28
Write protect#
31
GND
34
Disk change#
2.4.10
Intel® HD Audio Digital Header (CN24)
Pin Signal
1
MIC-IN
3
Line In L
5
Line In R
7
Audio Out L
9
Audio Out R
2.4.11
PS/2 Keyboard, Mouse Connector (CN29, CN30)
The board provides the Keyboard (CN29)/ Mouse (CN30) interface with a 5-pin
connector.
Pin
Signal
1
Clock
2
DATA
3
No connector
4
GND
5
VCC
14
Pin
Signal
2
Drive Density Select
5
GND
8
Index#
11
GND
14
Drive select A#
17
GND
20
STEP#
23
GND
26
Track 0 #
29
No connector
32
Head selection#
Pin Signal
2
GND
4
GND
6
GND
8
GND
10
GND
Pin
Signal
3
GND
6
No connector
9
GND
12
No connector
15
GND
18
Direction#
21
GND
24
Write gate#
27
GND
30
Read data#
33
No connector
2
1
3
4
6
5
8
7
9
10
Board and Pin Assignments
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