...because we can't all be on the bleeding edge...





DTC2278EB (400523-89A)

DATA TECHNOLOGY CORPORATION

DTC2278EB (400523-89A)

Card Type

Hard drive controller card

Hard drives supported

Four IDE(AT) interface drives

Floppy drives supported

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

Data-bus

32-bit VESA Local Bus

Size

Full-length, half-height card

CONNECTIONS

Function

Label

Function

Label

25-pin parallel port - external

J1

34-pin control cable connector - floppy drive

J5

10-pin serial port 2 - internal

J2

40-pin IDE(AT) secondary interface connector

J6

9-pin serial port 1 - external

J3

40-pin IDE(AT) primary interface connector

J7

16-pin game port - internal

J4

Drive active LED

J8

USER CONFIGURABLE CONNECTIONS

Function

Location

Setting

Game port enabled

W29

Closed

 

Game port disabled

W29

Open

Floppy drive interface enabled

W30

Pins 1 & 2 closed

 

Floppy drive interface disabled

W30

Pins 2 & 3 closed

SERIAL PORT 1 ADDRESS SELECTION

Setting

W22

W23

COM1 (3F8h)

Pins 1 & 2 closed

Pins 1 & 2 closed

 

COM2 (2F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

 

COM3 (3E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 2 ADDRESS SELECTION

Setting

W20

W21

COM1 (3F8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

COM2 (2F8h)

Pins 1 & 2 closed

Pins 1 & 2 closed

COM4 (2E8h)

Pins 2 & 3 closed

Pins 1 & 2 closed

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

PARALLEL PORT ADDRESS SELECTION

Setting

W18

W19

LPT1 (378h)

Pins 2 & 3 closed

Pins 1 & 2 closed

LPT2 (278h)

Pins 1 & 2 closed

Pins 1 & 2 closed

LPT3 (3BCh)

Pins 1 & 2 closed

Pins 2 & 3 closed

Disabled

Pins 2 & 3 closed

Pins 2 & 3 closed

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

W15

W16

W17

 

IRQ3

Open

Closed

Open

IRQ4

Open

Open

Closed

 

IRQ5

Closed

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

W12

W13

W14

IRQ3

Open

Open

Closed

 

IRQ4

Open

Closed

Open

 

IRQ5

Closed

Open

Open

PARALLEL PORT INTERRUPT SELECTION

IRQ

W10

W11

 

IRQ5

Closed

Open

IRQ7

Open

Closed

BIOS ADDRESS SELECTION

Address

W7

W8

W24

C8000h-CBFFFh

Pins 2 & 3 closed

Pins 2 & 3 closed

Closed

CC000h-CFFFFh

Pins 2 & 3 closed

Pins 1 & 2 closed

Closed

D8000h-DBFFFh

Pins 1 & 2 closed

Pins 2 & 3 closed

Closed

DC000h-DFFFFh

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

Disabled

Open

Open

Open

DMA CHANNEL SELECTION

Channel

W1

W2

W3

W4

1

Closed

Open

Closed

Open

3

Open

Closed

Open

Closed

PARALLEL PORT MODE SELECTION

Setting

W9

W25

W31

Bidirectional /ECP

Pins 2 & 3 closed

Pins 1 & 2 closed

Closed

Bidirectional /EPP

Pins 1 & 2 closed

Pins 2 & 3 closed

Open

Uni-directional

Pins 2 & 3 closed

Pins 2 & 3 closed

Open

EPP & ECP

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed