CMS ENHANCEMENTS, INC.

HCWD7VSE1/2

Data bus:

16-bit ISA

Size:

Three-quarter length, half-height card

Hard drive supported:

Two ESDI ST506/412 drives

Floppy drives supported:

360KB, 720KB, 1.2MB, 1.44MB

CONNECTIONS

Function

Location

34-pin control cable connector - floppy drive

J1

34-pin control cable connector - hard drive

J2

20-pin data cable connector - drive 0

J3

20-pin data cable connector - drive 1

J4

4-pin connector - drive active LED

J5

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Caching enabled

W1/A

open

 

Caching disabled

W1/A

closed

»

Four byte ECC mode enabled

W1/B

open

 

Seven byte ECC mode enabled

W1/B

closed

»

Disk address translation enabled

W1/C

open

 

Disk address translation disabled

W1/C

closed

USER CONFIGURABLE SETTINGS(CONTINUED)

Function

Location

Setting

»

Factory configured - do not alter

W1/D

open

»

Sectors per track determined by drive jumpers

W1/E

open

 

Sectors per track not determined by drive jumpers

W1/E

closed

»

Alternate hard drive sectors disabled

W1/F

open

 

Alternate hard drive sectors enabled

W1/F

closed

»

BIOS enabled

W3

open

 

BIOS disabled

W3

closed

»

Single speed floppy drive interface enabled

W5

open

 

Dual speed floppy drive interface enabled

W5

closed

»

Floppy drive address 3F2h select

W6

open

 

Floppy drive address 372h select

W6

closed

»

Interrupt IRQ14 enabled

W7

pins 1 & 2 closed

 

Interrupt IRQ15 enabled

W7

pins 2 & 3 closed

»

Base memory address is CC000h

W8

pins 2 & 3 closed

 

Base memory address is C8000h

W8

pins 1 & 2 closed

»

Hard drive address is 1F0h

W12

open

 

Hard drive address is 170h

W12

closed

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