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HCWDXTGEN

CMS ENHANCEMENTS, INC.

HCWDXTGEN

Data bus:

8-bit ISA

Size:

Half length, full-height card

Hard drive supported:

Two MFM ST506/412 drives

Floppy drives supported:

None

CONNECTIONS

Function

Location

34-pin data cable connector - hard drive

J1

20-pin data cable connector - drive 0

J2

20-pin data cable connector - drive 1

J3

External power connector

J4

4-pin connector - drive active LED

J5

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Factory configured - do not alter

W25

open

Factory configured - do not alter

W26

open

Interrupt select IRQ5

W27

open

 

Interrupt select IRQ2

W27

closed

AT compatibility mode enabled

W28

closed

 

XT compatibility mode enabled

W28

open

ADDRESS SELECT

I/O Address

Base Memory Address

W21

W22

320h

C8000h

open

open

324h

CA000h

closed

open

328h

CC000h

open

closed

32Ch

CE000h

closed

closed

PRE-SELECTED DRIVE CONFIGURATION

     

Drive 0

Drive 1

 

Capacity

Heads

Cylinders

W17

W18

W19

W20

21MB

4

615

open

open

open

open

 

21MB

4

612

closed

closed

closed

closed

 

10MB

4

306

open

closed

open

closed

 

10MB

2

615

closed

open

closed

open