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SDC1602

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.