Voltages and Signals

Agilent 35670A

A100 Disk Drive

 

A100 Disk Drive

The following table lists signals routed between the A100 Disk Drive assembly and the A7 CPU assembly. This table shows several things — if the assembly generates or uses the signal or voltage, and if a signal is bidirectional. A description of each signal follows the table.

Signal Name

Pin(s)

A7 P3

A100

 

 

 

 

DIR

17

S

 

 

 

 

DISKINn

22

S

 

 

 

 

DRIVESELn

21, 29

S

 

 

 

 

DSKCHGn

1

S

 

 

 

 

HDSEL

3

S

 

 

 

 

HIDENSn

33

S

 

 

 

 

INDEXn

27

S

 

 

 

 

MTRn

19, 31

S

 

 

 

 

ReDATAn

5

S

 

 

 

 

SEL0

25

S

 

 

 

 

SEL1

23

S

 

 

 

 

STEPn

15

S

 

 

 

 

T00n

9

S

 

 

 

 

WDATA

13

S

 

 

 

 

WGATE

11

S

 

 

 

 

WRIPROTn

7

S

 

 

 

 

+5 V

24, 26, 28

 

 

 

 

Gnd

2-20 (even)

 

 

 

 

Not Used

30, 32, 34

 

 

 

 

SThis assembly is the source of the signal.

• This assembly uses the signal.

— This assembly does not use this signal.

9-34

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Image 378
Agilent Technologies 35670-90066 manual A100 Disk Drive