Digital-logic ag – Compaq MICROSPACE MSEBX900 User Manual
Page 45
DIGITAL-LOGIC AG
MSEBX800/900 Detailed Manual V1.0
45
X62
3.5" Hard Disk
Pin Signal
Pin Signal
1
Reset (active low)
2
GND
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 (keypin) NC
21 DRQ
22 GND
23 IOW(active low)
24 GND
25 IOR(active low)
26 GND
27 IOCHRDY
28 ALE / Master-Slave NC
29 DACK
30 GND
31 IRQ14 (pri) IRQ15 (sec) 32 IOCS16 (active low)
33 ADR1
34 DIAG
35 ADR0
36 ADR2
37 CS0 (active low)
38 CS1 (active low)
39 LED (active low)
40 GND
X70
Floppy Disk
FD26:
Pin
Signal Name
Function
in/out
1
VCC
+5Volt
2
IDX
Index Pulse
in
3
VCC
+5Volt
4
DS2
Drive Select *
out
5
VCC
+5Volt
6
DCHG
Disk Change
in
10
M02
Motor on *
out
12
DIRC
Direction Select
out
14
STEP
Step
out
16
WD
Write Data
out
17
GND
Signal grounds
18
WE
Write Enable
out
19
GND
Signal grounds
20
TRKO
Track 0
in
21
GND
Signal grounds
22
WP
Write Protect
in
23
GND
Signal grounds
24
RDD
Read Data
in
25
GND
Signal grounds
26
HS
Head Select
out