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DTC2278EB (400529-89A)

DATA TECHNOLOGY CORPORATION

DTC2278EB (400529-89A)

Card Type

Hard drive controller card

Hard Drives supported

Four EIDE drives

Floppy drives supported

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

Data Bus

32-bit VESA Local Bus

Card Size

Full-length, half-height card

CONNECTIONS

Function

Location

Function

Location

25-pin parallel port - external

CN2

40-pin secondary IDE(AT) connector

J6

10-pin serial port 2 - internal

J2

40-pin primary IDE(AT) connector

J7

16-pin game port

J4

2-pin connector - drive active LED

J8

34-pin cable connector - floppy drive

J5

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Game port enabled

W6

Closed

 

Game port disabled

W6

Open

ECP DMA CHANNEL SELECTION

Channel

W1

W2

W3

W4

1

Closed

Open

Closed

Open

3

Open

Closed

Open

Closed

PARALLEL PORT ADDRESS SELECTION

Setting

W19

W20

LPT1 (378h)

Pins 2 & 3 closed

Pins 1 & 2 closed

LPT2 (278h)

Pins 1 & 2 closed

Pins 2 & 3 closed

LPT3 (3BCh)

Pins 2 & 3 closed

Pins 2 & 3 closed

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 1 ADDRESS SELECTION

Setting

W23

W24

COM1 (3F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

COM3 (3E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 2 ADDRESS SELECTION

Setting

W21

W22

COM2 (2F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

COM4 (2E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

Disabled

Pins 1 & 2 closed

Pins 1 & 2 closed

BIOS ADDRESS SELECTION

Address

W18

W27

W28

DC000h

Closed

Pins 1 & 2 closed

Pins 1 & 2 closed

D8000h

Closed

Pins 1 & 2 closed

Pins 2 & 3 closed

CC000h

Closed

Pins 2 & 3 closed

Pins 1 & 2 closed

C8000h

Closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Disabled

Open

Open

Open

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

W12

W13

W14

IRQ4

Open

Open

Closed

IRQ3

Open

Closed

Open

IRQ5

Closed

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

W9

W10

W11

IRQ3

Open

Open

Closed

IRQ4

Open

Closed

Open

IRQ5

Closed

Open

Open

PARALLEL PORT INTERRUPT SELECTION

IRQ

W7

W8

IRQ7

Open

Closed

IRQ5

Closed

Open

PARALLEL PORT MODE SELECTION

Setting

W15

W16

Uni-directional

Pins 2 & 3 closed

Pins 2 & 3 closed

ECP & EPP

Pins 1 & 2 closed

Pins 2 & 3 closed

EPP & Bi-Directional

Pins 2 & 3 closed

Pins 1 & 2 closed

Invalid

Pins 1 & 2 closed

Pins 1 & 2 closed

MISCELLANEOUS TECHNICAL NOTES

Floppy is automatically enabled when cable is attached