CNET TECHNOLOGY, INC.

CN160A

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

16-bit ISA

Topology

Star

Wiring Type

RG-62/U 93ohm coaxial

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)

RESPONSE/RECONFIGURATION TIMEOUTS

Response Time

Reconfiguration Time

JP1

JP2

74.7µs

840ms

Open

Open

283.4µs

1680ms

Closed

Open

561.8µs

1680ms

Open

Closed

1118.6µs

1680ms

Closed

Closed

Note: All NICs on the network must have this option set the same.

INTERRUPT REQUEST

IRQ

JP3

JP4

JP5

JP6

JP7

JP8

JP9

JP10

JP11

JP12

JP13

»

2

Open

Open

Open

Open

Open

Open

Open

Open

Open

Open

Closed

 

3

Open

Open

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

Open

Open

Closed

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Open

Open

Open

Open

Closed

Open

 

10

Open

Open

Open

Open

Closed

Open

Open

Open

Open

Open

Open

 

11

Open

Open

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

Open

Open

Open

Open

Open

Open

 

15

Open

Closed

Open

Open

Open

Open

Open

Open

Open

Open

Open

I/O BASE ADDRESS

Address

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

 

260h

Off

On

On

Off

Off

On

 

290h

Off

On

Off

On

On

Off

»

2E0h

Off

On

Off

Off

Off

On

 

2F0h

Off

On

Off

Off

Off

Off

 

300h

Off

Off

On

On

On

On

 

350h

Off

Off

On

Off

On

Off

 

380h

Off

Off

Off

On

On

On

 

3E0h

Off

Off

Off

Off

Off

On

BASE MEMORY ADDRESS & BOOT ROM ADDRESS (REV.D, VER: A 05-01-0005-03)

Base Address

Boot ROM Address

SW1/7

SW1/7

SW1/9

SW1/10

 

C0000h

C8000h

Off

Off

On

On

»

D0000h

D8000h

Off

Off

On

Off

 

E0000h

E8000h

Off

Off

Off

On

BASE MEMORY ADDRESS & BOOT ROM ADDRESSS (VER: A 05-01-0005-04 OR ABOVE)

Base Address

Boot ROM Address

SW1/7

SW1/8

SW1/9

SW1/10

 

C0000h

C2000h

On

On

On

On

 

C4000h

C6000h

On

On

On

Off

 

CC000h

CE000h

On

On

Off

Off

»

D0000h

D2000h

On

Off

On

On

 

D4000h

D6000h

On

Off

On

Off

 

D8000h

DA000h

On

Off

Off

On

 

DC000h

DE000h

On

Off

Off

Off

 

E0000h

E2000h

Off

On

On

On

DIAGNOSTIC LED(S)

LED

Status

Condition

LED1

On

Link integrity is good

LED1

Off

Link integrity is broken

LED2

On

Data is being transmitted or recieved

LED2

Off

Data is not being transmitted or recieved

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