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SDC1602A

STORAGE DIMENSIONS

SDC1602A

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

»

Factory configured - do not alter

J5/1

Open

»

Factory configured - do not alter

J5/2

Closed

»

Factory configured - do not alter

J5/3

Open

»

Factory configured - do not alter

J5/4

Open

»

Factory configured - do not alter

J5/5

Closed

»

Factory configured - do not alter

J5/6

Closed

»

Factory configured - do not alter

J5/7

Open

»

Factory configured - do not alter

J5/8

Open

»

Factory configured - do not alter (Interrupt selection)

J6/4

Open

»

Factory configured - do not alter (Interrupt selection)

J6/5

Closed

»

Factory configured - do not alter (DMA selection)

J6/6

Open

»

Factory configured - do not alter (DMA selection)

J6/7

Open

»

SCSI parity check disabled

J6/8

Open

 

SCSI parity check enabled

J6/8

Closed

»

Floppy drive interface enabled

J7/1

Closed

 

Floppy drive interface disabled

J7/1

Open

»

Factory configured - do not alter (DMA 2 or 3 selection)

J7/2

Closed

»

Factory configured - do not alter (DMA 2 or 3 selection)

J7/3

Open

»

Factory configured - do not alter (DMA 2 or 3 selection)

J7/4

Closed

»

Factory configured - do not alter (DMA 2 or 3 selection)

J7/5

Open

USER CONFIGURABLE SETTINGS (CON’T)

Function

Label

Position

»

Floppy drive dual speed enabled

J7/8

Closed

 

Floppy drive dual speed disabled

J7/8

Open

»

Primary I/O port address 340h enabled

J9/5

Open

 

Secondary I/O port address 140h enabled

J9/5

Closed

»

Factory configured - do not alter (BIOS address selection)

J9/6

Closed

»

Factory configured - do not alter (BIOS address selection)

J9/7

Closed

»

SCSI BIOS enabled

J9/8

Closed

 

SCSI BIOS disabled

J9/8

Open

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

SCSI ID SELECTION

SCSI ID

J6/1

J6/2

J6/3

»

7

Closed

Closed

Closed

Note:Other settings are unidentified.

DMA CHANNEL SELECTION

Channel

J8/1

J8/2

J8/3

J8/4

J8/5

J8/6

J8/7

J8/8

»

0

Open

Open

Open

Closed

Open

Open

Open

Closed

 

5

Open

Open

Closed

Open

Open

Open

Closed

Open

 

6

Open

Closed

Open

Open

Open

Closed

Open

Open

 

7

Closed

Open

Open

Open

Closed

Open

Open

Open

FLOPPY DRIVE INTERRUPT SELECTION

IRQ

J7/6

J7/7

»

IRQ6

Closed

Open

 

IRQ10

Open

Closed

INTERRUPT SELECTION

IRQ

J9/1

J9/2

J9/3

J9/4

 

IRQ9

Open

Open

Open

Closed

 

IRQ10

Open

Open

Closed

Open

»

IRQ11

Open

Closed

Open

Open

 

IRQ12

Closed

Open

Open

Open

MISCELLANEOUS TECHNICAL NOTES

Remove terminating resistors when connecting external and internal devices.