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HCWD3VMM2/HCWD6VMM2

CMS ENHANCEMENTS, INC.

HCWD3VMM2/HCWD6VMM2

Data bus:

16-bit ISA

Size:

Three-quarter length, full-height card

Hard drive supported:

Two MFM ST412 drives

Floppy drives supported:

320KB, 360KB, 720KB, 1.2MB, 1.44MB

CONNECTIONS

Function

Location

34-pin control 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

External LED connector

J6

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Latched hard disk mode enabled

W1/A

open

 

Non-latched hard disk mode enabled

W1/A

closed

Four byte ECC enabled

W1/B

open

 

Reserved

W1/B

closed

Caching enabled

W1/C

open

 

Caching disabled

W1/C

closed

Factory configured - do not alter

W1/D

open

USER CONFIGURABLE SETTINGS(CONTINUED)

Function

Location

Setting

Primary hard drive I/O address select

W3

open

 

Alternate hard drive I/O address select

W3

closed

Primary floppy drive I/O address select

W4

open

 

Alternate floppy drive I/O address select

W4

closed

Single speed floppy drive mode enabled

W5

open

 

Dual speed floppy drive mode enabled

W5

closed