Pin assignments of connectors
23
4.11 Floppy disk connector (CN1)
Pin No.
Description
1 -33 (odd)
Ground
2 High
density
4,6 Unused
8 Index
10
Motor enable A
12
Driver select B
14
Driver select A
16
Motor enable B
18 Direction
20 Step
pulse
22 Write
data
24 Wite
enable
26 Track
0
28 write
protect
30 Read
data
32 Select
head
34 Disk
change
Pin assignments of connectors
24
4.12 Hard disk connector (CN2)
Pin No.
Description
Pin No.
Description
1 -RST
2 Ground
3 D7
4 D8
5 D6
6 D9
7 D5
8 D10
9 D4
10 D11
11 D3 12 D12
13 D2 14 D13
15 D1 16 D14
17 D0 18 D15
-19 GND
20 N.C
21 N.C 22 GND
23 IOW
24 GND
25 IOR 26 GND
27 IORDY
28 BALE
29 N.C.
30 GND
31 IRQ 32 IO16
33 A1 34 N.C.
35 A0 36 A2
CS0
37 CS0
38 CS1
39 -ACT
40 GND
