Spectra MB720 User Manual page 17

FDD1: Floppy Drive Connector
FDD1is a slim 26-pin connector and will support up to 2.88MB FDD.
Signal Name
VCC
VCC
VCC
NC
NC
DINST
NC
GND
GND
GND
NC
GND
GND
IDE1, IDE2: Secondary and Primary IDE Connectors
Signal Name
Reset IDE
Host data 7
Host data 6
Host data 5
Host data 4
Host data 3
Host data 2
Host data 1
Host data 0
Ground
DRQ0
Host IOW
Host IOR
IOCHRDY
DACK0
IRQ14
nd
IDE1: 2 IDE Address 1
Address 0
Chip select 0
Activity
Vcc
Ground
MB720 User's Manual
INSTALLATIONS
Pin # Pin # Signal Name
1 2 INDEX
3 4 DRV_SEL
5 6 DSK_CH
7 8 NC
9 10 MOTOR
11 12 DIR
13 14 STEP
15 16 WDATA
17 18 WGATE
19 20 TRACK
21 22 WPROT
23 24 RDATA
25 26 SIDE
Pin # Pin # Signal Name
1 2 Ground
3 4 Host data 8
5 6 Host data 9
7 8 Host data 10
9 10 Host data 11
11 12 Host data 12
13 14 Host data 13
15 16 Host data 14
17 18 Host data 15
19 20 Key
21 22 Ground
23 24 Ground
25 26 Ground
27 28 Host ALE
29 30 Ground
31 32 No connect
33 34 No connect
35 36 Address 2
37 38 Chip select 1
39 40 Ground
41 42 Vcc
43 44 N.C.
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