NCL AMERICA

NCL 525

Data bus:

16-bit, ISA

Size:

Three/quarter-length, full-height card

Hard drive supported:

Four IDE(AT) Interface drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

40-pin IDE(AT) Interface connector - IDE-0

J5

40-pin IDE(AT) Interface connector - IDE-1

J6

34-pin control cable connector - floppy drive

J3

4-pin connector - Drive active LED

J4

BIOS ADDRESS

Address

Jumper JP8

Jumper JP8A

»

C800h

open

open

 

CC00h

closed

open

 

D800h

open

closed

 

DC00h

closed

closed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

DMA Request channel is DRQ2

JP1

Pins 1 & 2 closed

 

DMA Request channel is DRQ3

JP1

Pins 2 & 3 closed

»

DMA Acknowledge channel is DACK2

JP2

Pins 1 & 2 closed

 

DMA Acknowledge channel is DACK3

JP2

Pins 2 & 3 closed

»

IDE-0 Hard Drive interrupt is IRQ14

JP3

Pins 1 & 2 closed

 

IDE-0 Hard Drive interrupt is IRQ11

JP3

Pins 2 & 3 closed

»

IDE-1 Hard Drive interrupt is IRQ15

JP4

Pins 1 & 2 closed

 

IDE-1 Hard Drive interrupt is IRQ12

JP4

Pins 2 & 3 closed

»

IDE-0 IRQ Buffer mode disabled

JP5

Pins 1 & 2 closed

 

IDE-0 IRQ Buffer mode enabled

JP5

Pins 2 & 3 closed

»

IDE-0 I/O Channel Ready disabled

JP6

open

 

IDE-0 I/O Channel Ready enabled

JP6

closed

»

IDE-1 I/O Channel Ready disabled

JP7

open

 

IDE-1 I/O Channel Ready enabled

JP7

closed

»

Floppy drive interrupt is IRQ6

JP9

Pins 1 & 2 closed

 

Floppy drive interrupt is IRQ10

JP9

Pins 2 & 3 closed

»

Floppy drive port address is 3F2-3F7h

JP10

closed

 

Floppy drive port address is 372-377h

JP10

open

»

IDE-0 normal operation mode enabled

JP11

open

 

IDE-0 diagnostic mode enabled

JP11

closed

»

IDE-1 normal operation mode enabled

JP12

open

 

IDE-1 diagnostic mode enabled

JP12

closed

»

IDE-1 IRQ Buffer mode disabled

JP13

Pins 1 & 2 closed

 

IDE-1 IRQ Buffer mode enabled

JP13

Pins 2 & 3 closed

»

Floppy drive enabled

JP14

open

 

Floppy drive disabled

JP14

closed