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ARCNET T100

STANDARD MICROSYSTEMS CORPORATION

ARCNET T100

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

Toshiba laptop internal expansion slot

(T5100, T3100, T3100e, T1600, T1200, and T1100Plus)

Topology

Star

Linear Bus

Wiring Type

RG-62A/U 93ohm coaxial

Boot ROM

Not 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)

BASE MEMORY ADDRESS

Base Address

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

C0000h

On

On

On

On

On

C0800h

On

On

On

On

Off

C1000h

On

On

On

Off

On

C1800h

On

On

On

Off

Off

C4000h

On

On

Off

On

On

C4800h

On

On

Off

On

Off

C5000h

On

On

Off

Off

On

C5800h

On

On

Off

Off

Off

CC000h

On

Off

On

On

On

CC800h

On

Off

On

On

Off

CD000h

On

Off

On

Off

On

CD800h

On

Off

On

Off

Off

D0000h

On

Off

Off

On

On

D0800h

On

Off

Off

On

Off

D1000h

On

Off

Off

Off

On

D1800h

On

Off

Off

Off

Off

D4000h

Off

On

On

On

On

D4800h

Off

On

On

On

Off

D5000h

Off

On

On

Off

On

D5800h

Off

On

On

Off

Off

D8000h

Off

On

Off

On

On

D8800h

Off

On

Off

On

Off

D9000h

Off

On

Off

Off

On

D9800h

Off

On

Off

Off

Off

DC000h

Off

Off

On

On

On

DC800h

Off

Off

On

On

Off

DD000h

Off

Off

On

Off

On

DD800h

Off

Off

On

Off

Off

E0000h

Off

Off

Off

On

On

E0800h

Off

Off

Off

On

Off

E1000h

Off

Off

Off

Off

On

E1800h

Off

Off

Off

Off

Off

I/O BASE ADDRESS

Address

SW1/6

SW1/7

SW1/8

300h

On

On

Off

 

260h

On

On

On

 

290h

Off

On

On

 

2E0h

On

Off

On

 

2F0h

Off

Off

On

 

350h

Off

On

Off

 

380h

On

Off

Off

 

3E0h

Off

Off

Off

STANDBY MODE

Mode

SW3

Power is supplied to the card

On (position 1)

Power is not supplied to the card

Off (position 0)

INTERRUPT REQUEST

IRQ

JP1A

JP1B

JP1C

2

Closed

Open

Open

3

Open

Closed

Open

5

Open

Open

Closed

RESPONSE & RECONFIGURATION TIMEOUTS

Response Time

Idle Time

Reconfig. Time

JP2A

JP2B

JP2C

78s

86s

840ms

Closed

Closed

Open

 

285s

316s

1680ms

Closed

Open

Open

 

563s

624s

1680ms

Open

Closed

Open

 

1190s

1237s

1680ms

Open

Open

Open

TOPOLOGY CONFIGURATION

Topology

JP3

Star

Closed

Linear Bus

Open