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8-BIT ETHERNET

BROADTECH INTERNATIONAL COMPANY

8-BIT ETHERNET

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

8-bit ISA

Topology

Linear Bus, Star

Wiring Type

DIX transceiver via DB-15 port

RG58A/U 50ohm coaxial

Boot ROM

Available

BASE MEMORY ADDRESS SELECT

Address

JP2/C

JP2/D

JP2/E

C800h - CBFFh

Closed

Open

Closed

 

C000h - C3FFh

Closed

Closed

Closed

 

C400h - C7FFh

Open

Closed

Closed

 

CC00h - CFFFh

Open

Open

Closed

 

D000h - D3FFh

Closed

Closed

Open

 

D400h - D7FFh

Open

Closed

Open

 

D800h - DBFFh

Closed

Open

Open

 

DC00h - DFFFh

Open

Open

Open

BOOT ROM

Setting

JP2/F

Disabled

Open

 

Enabled

Closed

CABLE TYPE

Type

JP3/A

JP3/B

JP3/C

JP3/D

JP3/E

JP3/F

JP3/G

Thin

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

 

Thick

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Note: All Pins designated should be in the closed position.

INTERRUPT SELECT

IRQ

JP1/A

JP1/B

JP1/C

JP1/D

IRQ3

Open

Closed

Open

Open

 

IRQ2

Closed

Open

Open

Open

 

IRQ4

Open

Open

Closed

Open

 

IRQ5

Open

Open

Open

Closed

I/O ADDRESS SELECT

Address

JP2/A

JP2/B

300h - 31Fh

Closed

Closed

 

320h - 33Fh

Open

Closed

 

340h - 35Fh

Closed

Open

 

360h - 37Fh

Open

Open