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21
Floppy disk connector (34-pins 2.54mm pitch pin-header with
housing): CN7
Pin # Assignment Pin # Assignment
1 Ground 2 Drive Density Selection
3 Ground 4 NC
5 Ground 6 Drive Density Selection
7 Ground 8 Index
9 Ground 10 Motor Enable 0
11 Ground 12 Drive Select 1
13 Ground 14 Drive Select 0
15 Ground 16 Motor Enable 1
17 Ground 18 Direction
19 Ground 20 Step
21 Ground 22 Write Data
23 Ground 24 Write Gate
25 Ground 26 Track 00
27 Ground 28 Write Protect
29 NC 30 Read Data
31 Ground 32 Head Select
33 NC 34 Diskette Change
y Figure:
ATX power connector: CN8
Pin # Assignment
1 PME
2 5VSB
3 PSON
4 Ground
y Figure:
1
234
33
1
4