GATEWAY COMMUNICATIONS, INC.

G/ETHERTWIST 8

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

8-bit ISA

Topology

Linear bus

Star

Wiring Type

Unshielded twisted pair

Boot ROM

Available

BOOT ROM ADDRESS

PROM Address

SW1/4

SW1/5

SW1/6

C4000h - C7FFFh

On

On

On

C8000h - CBFFFh

Off

On

On

CC000h - CFFFFh

On

Off

On

D0000h - D3000h

Off

Off

On

D4000h - D7000h

On

On

Off

D8000h - DBFFFh

Off

On

Off

DC000h - DFFFFh

On

Off

Off

Disabled

Off

Off

Off

CONNECTIONS

Purpose

Location

On-board link test LED

JP9, Pins 1 & 3

Optional link test LED

JP9, Pins 3 & 4

Receive LED

JP9, Pins 5 & 6

Transmit LED

JP9, Pins 7 & 8

Collision LED

JP9, Pins 9 & 10

INTERRUPT SELECT

IRQ

JP10/A

JP10/B

JP10/C

JP10/D

JP10/E

JP10/F

»

IRQ5

Open

Open

Open

Closed

Open

Open

 

IRQ2

Closed

Open

Open

Open

Open

Open

 

IRQ3

Open

Closed

Open

Open

Open

Open

 

IRQ4

Open

Open

Closed

Open

Open

Open

 

IRQ6

Open

Open

Open

Open

Closed

Open

 

IRQ7

Open

Open

Open

Open

Open

Closed

I/O ADDRESS SELECT

Address Range

SW1/1

SW1/2

SW1/3

»

2A0h - 2BFh

On

Off

On

 

260h - 27Fh

On

On

On

 

280h - 29Fh

Off

On

On

 

2E0h - 2FFh

Off

Off

On

 

300h - 31Fh

On

On

Off

 

320h - 33Fh

Off

On

Off

 

380h - 39Fh

On

Off

Off

 

3E0h - 3FFh

Off

Off

Off

WAIT STATE

Setting

SW1/7

»

Disabled

Off

 

Enabled

On

FACTORY CONFIGURED SETTINGS

Switch

Setting

SW1/8

N/A

DIAGNOSTIC LED

Color

Status

Condition

Green

On

Network connection is good

Green

Off

Network connection is broken