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HCWD7VSE1/2

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