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ARCNET PC650

STANDARD MICROSYSTEMS CORPORATION

ARCNET PC650

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

16-bit ISA

Topology

Star

Wiring Type

Unshielded twisted pair

Boot ROM

Available

NODE ADDRESS

Node

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

0

-

-

-

-

-

-

-

-

1

Off

On

On

On

On

On

On

On

2

On

Off

On

On

On

On

On

On

3

Off

Off

On

On

On

On

On

On

4

On

On

Off

On

On

On

On

On

251

Off

Off

On

Off

Off

Off

Off

Off

252

On

On

Off

Off

Off

Off

Off

Off

253

Off

On

Off

Off

Off

Off

Off

Off

254

On

Off

Off

Off

Off

Off

Off

Off

255

Off

Off

Off

Off

Off

Off

Off

Off

Note: Node address 0 is used for messaging between nodes and must not be used.

A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch 1 is the Least Significant Bit and switch 8 is the Most Significant Bit. The switches have the following decimal values: switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (On=0, Off=1)

BOOT ROM

Setting

JP2

Disabled

Open

 

Enabled

Closed

INTERRUPT REQUEST

IRQ

JP3A

JP3B

JP3C

JP3D

JP3E

JP3F

3

Closed

Open

Open

Open

Open

Open

4

Open

Closed

Open

Open

Open

Open

5

Open

Open

Closed

Open

Open

Open

7

Open

Open

Open

Closed

Open

Open

9

Open

Open

Open

Open

Closed

Open

10

Open

Open

Open

Open

Open

Closed

I/O BASE ADDRESS

Address

SW1/1

SW1/2

SW1/3

300h

Off

On

On

 

260h

On

On

On

 

290h

On

On

Off

 

2E0h

On

Off

On

 

2F0h

On

Off

Off

 

350h

Off

On

Off

 

380h

Off

Off

On

 

3E0h

Off

Off

Off

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED1

Red

On

Card is being accessed by host computer

LED1

Red

Off

Card is not being accessed by host computer

LED2

Green

On

Data is being transmitted or received

LED2

Green

Off

Data is not being transmitted or received

LED2

Green

blinking

Network is reconfiguring

BASE MEMORY & BOOT ROM ADDRESS

Base Address

Boot ROM Address

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

C0000h

C2000h

On

On

On

On

On

C0800h

C2000h

On

On

On

On

Off

C1000h

C2000h

On

On

On

Off

On

C1800h

C2000h

On

On

On

Off

Off

C4000h

C6000h

On

On

Off

On

On

C4800h

C6000h

On

On

Off

On

Off

C5000h

C6000h

On

On

Off

Off

On

C5800h

C6000h

On

On

Off

Off

Off

CC000h

CE000h

On

Off

On

On

On

CC800h

CE000h

On

Off

On

On

Off

CD000h

CE000h

On

Off

On

Off

On

CD800h

CE000h

On

Off

On

Off

Off

D0000h

D2000h

On

Off

Off

On

On

D0800h

D2000h

On

Off

Off

On

Off

D1000h

D2000h

On

Off

Off

Off

On

D1800h

D2000h

On

Off

Off

Off

Off

D4000h

D6000h

Off

On

On

On

On

D4800h

D6000h

Off

On

On

On

Off

D5000h

D6000h

Off

On

On

Off

On

D5800h

D6000h

Off

On

On

Off

Off

D8000h

DA000h

Off

On

Off

On

On

D8800h

DA000h

Off

On

Off

On

Off

D9000h

DA000h

Off

On

Off

Off

On

D9800h

DA000h

Off

On

Off

Off

Off

DC000h

DE000h

Off

Off

On

On

On

DC800h

DE000h

Off

Off

On

On

Off

DD000h

DE000h

Off

Off

On

Off

On

DD800h

DE000h

Off

Off

On

Off

Off

E0000h

E2000h

Off

Off

Off

On

On

E0800h

E2000h

Off

Off

Off

On

Off

E1000h

E2000h

Off

Off

Off

Off

On

E1800h

E2000h

Off

Off

Off

Off

Off