STORAGE DIMENSIONS

SDC1602

Card Type

Hard drive controller

Hard Drives supported

Up to 7 SCSI-1 devices

Floppy drives supported

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

Data Bus

16-bit ISA

Card Size

Half-length, full-height

CONNECTIONS

Function

Location

Function

Location

50-pin SCSI connector - external

CN1

4-pin connector - drive active LED

CN4

50-pin SCSI connector - internal

CN2

SCSI active LED

CN5

34-pin cable connector - floppy drive

CN3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Synchronous negotiation initiation disabled

J5/1

Open

 

Synchronous negotiation initiation enabled

J5/1

Closed

»

Factory configured - do not alter

J5/2

Open

»

SCSI parity check disabled

J5/3

Closed

 

SCSI parity check enabled

J5/3

Open

»

SCSI BIOS enabled

J6/1

Closed

 

SCSI BIOS disabled

J6/1

Open

»

Factory configured - do not alter

J6/2

Unidentified

»

Factory configured - do not alter

J6/3

Unidentified

»

Factory configured - do not alter

J6/4

Unidentified

»

SCSI auto sense enabled

J6/5

Open

 

SCSI auto sense disabled

J6/5

Closed

»

Floppy interface address 3F0h enabled

J7/1

Open

 

Floppy interface address 370h enabled

J7/1

Closed

»

Floppy drive interface enabled

J8/1

Closed

 

Floppy drive interface disabled

J8/1

Open

»

Floppy drive dual speed disabled

J8/8

Open

 

Floppy drive dual speed enabled

J8/8

Closed

Note:Disable BIOS when SDC1602A is a secondary card in the system.

SCSI ID SELECTION

SCSI ID

J5/4

J5/5

J5/6

 

0

Closed

Closed

Closed

 

1

Open

Closed

Closed

 

2

Closed

Open

Closed

 

3

Open

Open

Closed

 

4

Closed

Closed

Open

 

5

Open

Closed

Open

 

6

Closed

Open

Open

»

7

Open

Open

Open

DMA CHANNEL SELECTION (1)

Channel

J5/7

J5/8

 

0

Closed

Closed

»

5

Open

Closed

 

6

Closed

Open

 

7

Open

Open

FLOPPY INTERFACE DMA SELECTION

Channel

J8/2

J8/3

J8/4

J8/5

»

2

Closed

Open

Closed

Open

 

3

Open

Closed

Open

Closed

DMA TRANSFER SPEED SELECTION

Setting

J5/12

J5/13

»

5.0 MB/sec

Open

Open

 

5.7 MB/sec

Closed

Open

 

6.7 MB/sec

Open

Closed

 

8.0 MB/sec

Closed

Closed

DMA CHANNEL SELECTION (2)

Channel

J9/1

J9/2

J9/3

J9/4

J9/5

J9/6

J9/7

J9/8

 

0

Closed

Open

Open

Open

Closed

Open

Open

Open

»

5

Open

Closed

Open

Open

Open

Closed

Open

Open

 

6

Open

Open

Closed

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Closed

Open

Open

Open

Closed

Note: Settings must match J5 settings (DMA table 1).

BASE I/O ADDRESS SELECTION

Setting

J7/2

J7/3

J7/4

 

130

Closed

Open

Closed

 

134

Open

Open

Closed

 

230

Closed

Closed

Open

 

234

Open

Closed

Open

»

330

Closed

Open

Open

 

334

Open

Open

Open

BIOS ADDRESS SELECTION

Setting

J7/7

J7/8

 

C800h

Closed

Closed

 

CC00h

Closed

Open

 

D800h

Open

Closed

»

DC00h

Open

Open

FLOPPY DRIVE INTERRUPT SELECTION

IRQ

J8/6

J8/7

»

IRQ6

Closed

Open

 

IRQ10

Open

Closed

INTERRUPT SELECTION (1)

IRQ

J5/9

J5/10

J5/11

 

IRQ9

Open

Open

Open

 

IRQ10

Closed

Open

Open

»

IRQ11

Open

Closed

Open

 

IRQ12

Closed

Closed

Open

 

IRQ14

Open

Open

Closed

 

IRQ15

Closed

Open

Closed

INTERRUPT SELECTION (2)

IRQ

J9/9

J9/10

J9/11

J9/12

J9/13

J9/14

 

IRQ9

Closed

Open

Open

Open

Open

Open

 

IRQ10

Open

Closed

Open

Open

Open

Open

»

IRQ11

Open

Open

Closed

Open

Open

Open

 

IRQ12

Open

Open

Open

Closed

Open

Open

 

IRQ14

Open

Open

Open

Open

Closed

Open

 

IRQ15

Open

Open

Open

Open

Open

Closed

Note:The above settings must match J5 settings (interrupt selection table 1).

IOCHRDY WAIT STATE SELECTION

Setting

J7/5

J7/6

»

Disabled

Open

Open

 

100ns

Closed

Open

 

200ns

Open

Closed

 

300ns

Closed

Closed

MISCELLANEOUS TECHNICAL NOTES

Remove terminating resistors when connecting external and internal devices.

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