...because we can't all be on the bleeding edge...





NCL 538B

NCL AMERICA

NCL 538B

Data bus: 16-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two AT Interface (IDE) drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

CONNECTIONS

Function

Location

34-pin control cable connector-floppy drive

CN3

40-pin AT Interface (IDE) connector

CN4

4-pin connector-drive active LED

CN10

USER CONFIGURABLE SETTINGS

Function

Location

Setting

DACK2 (Floppy drive DMA Acknowledge) (hard-wired)

JP1

pins 1 & 2 closed

 

DACK3 (Floppy drive DMA Acknowledge)

JP1

pins 2 & 3 closed

IRQ6 (Floppy drive Interrupt Request) (hard-wired)

JP2

pins 1 & 2 closed

 

IRQ10 (Floppy drive Interrupt Request)

JP2

pins 2 & 3 closed

IRQ14 (Hard drive Interrupt Request)

JP3

pins 1 & 2 closed

 

IRQ15 (Hard drive Interrupt Request)

JP3

pins 2 & 3 closed

DRQ2 (Floppy drive DMA Request) (hard-wired)

JP4

pins 1 & 2 closed

 

DRQ3 (Floppy drive DMA Request)

JP4

pins 2 & 3 closed

Hard drive port address is 1FO-1F7h

JP6

open

 

Hard drive port address is 17O-177h

JP6

closed

Floppy drive port address is 3F2-3F7h

JP7

open

 

Floppy drive port address is 372-377h

JP7

closed

Normal operation

JP8

open

 

Diagnostic mode

JP8

closed

Zero wait state disabled

JP9

open

 

Zero wait state enabled

JP9

closed

BIOS enabled

JP11

closed

 

BIOS disabled

JP11

open

BIOS ADDRESS

Address

Jumper JP5

Jumper JP5A

C800h

open

open

 

CC00h

closed

open

 

D800h

open

closed

 

DC00h

closed

closed

MISCELLANEOUS TECHNICAL NOTES

Debug: G=C800:5 sets up custom parameters for IDE drives