Compaq MSEBX900, MSEBX800 user manual X62 3.5 Hard Disk Pin Signal

DIGITAL-LOGIC AG MSEBX800/900 Detailed Manual V1.0

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

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