DATA TECHNOLOGY CORPORATION

DTC2278EB

Data bus:

32-bit VL-Bus

Size:

Three/quarter-length, half-height card

Hard drive supported:

Four IDE(AT) or EIDE interface drives

Floppy drives supported:

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

CONNECTIONS

Function

Location

10-pin serial port 2 - internal

J2

9-pin serial port 1 - external

J3

16-pin game port

J4

34-pin cable connector - floppy drive

J5

40-pin connector - secondary IDE(AT) interface

J6

40-pin connector - primary IDE(AT) interface

J7

4-pin connector - drive active LED

J8

25-pin parallel port - external

J9

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Game port enabled

W29

closed

 

Game port disabled

W29

open

»

Floppy controller enabled

W30/pins 1 & 2

closed

 

Floppy controller disabled

W30/pins 2 & 3

closed

BIOS ADDRESS SELECTION

Address

W7

W8

W24

»

C8000-CBFFFh

pins 2 & 3 closed

pins 2 & 3 closed

closed

 

CC000-CFFFFh

pins 2 & 3 closed

pins 1 & 2 closed

closed

 

D8000-DBFFFh

pins 1 & 2 closed

pins 2 & 3 closed

closed

 

DC000-DFFFFh

pins 1 & 2 closed

pins 1 & 2 closed

closed

 

Disabled

N/A

N/A

open

PARALLEL PORT ADDRESS SELECTION

LPT

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 ADDRESS SELECTION

COM

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

COM

W20

W21

»

COM2 (2F8h)

pins 1 & 2 closed

pins 1 & 2 closed

 

COM1 (3F8h)

pins 1 & 2 closed

pins 2 & 3 closed

 

COM4 (2E8h)

pins 2 & 3 closed

pins 1 & 2 closed

 

Disabled

pins 2 & 3 closed

pins 2 & 3 closed

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

W15

W16

W17

»

IRQ4

open

open

closed

 

IRQ3

open

closed

open

 

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

»

IRQ7

open

closed

 

IRQ5

closed

open

PARALLEL PORT MODE CONFIGURATION

Mode

W9

W25

W31

Printer (uni-directional)

pins 2 & 3 closed

pins 2 & 3 closed

open

EPP & bi-directional

pins 1 & 2 closed

pins 2 & 3 closed

open

ECP & bi-directional

pins 2 & 3 closed

pins 1 & 2 closed

closed

EPP & ECP

pins 1 & 2 closed

pins 1 & 2 closed

closed

Note: You must select a DMA channel when using ECP mode.

DMA SELECTION

Channel

W1

W2

W3

W4

1

closed

open

closed

open

3

open

closed

open

closed

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