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





LRK-330/331

LARK ASSOCIATES, INC.

LRK-330/331

Data bus:

16-bit ISA

Size:

Three-quarter length, full-height card

Hard drive supported:

Two ESDI drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

34-pin cable connector - floppy drive

J1

20-pin data cable connector- drive 1

J3

20-pin data cable connector- drive 0

J4

34-pin control cable connector-hard drive

J5

4-pin connector - drive active LED

J6

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Primary hard drive address is 1F0h-1F7h

Primary floppy drive address is 370h-3F7h

W1

open

Secondary hard drive address is 170h-177h

Secondary floppy drive address is 370h-377h

W1

closed

Floppy drive is single speed

W2

open

 

Floppy drive is dual speed

W2

closed

Interrupt delay disabled

W3

open

 

Interrupt delay enabled

W3

closed

USER CONFIGURABLE SETTINGS (CONTINUED)

Function

Location

Setting

Factory configured - do not alter

W4

N/A

IDE(AT) IRQ 14 select

W9

closed

 

IDE(AT) IRQ 15 select

W10

closed

Floppy drive interface enabled

W11

open

 

Floppy drive interface disabled

W11

closed

Note: W12 is unidentified

BIOS ADDRESS SELECTION

Address

W5

W6

W7

W8

C800h

closed

open

open

open

 

CC00h

open

closed

open

open

 

D000h

open

open

closed

open

 

D400h

open

open

open

closed

 

Disabled

open

open

open

open