NETWORK INTERFACE TECHNOLOGY CORPORATION
PCARC/20
|
NIC Type |
Arcnet |
|
Transfer Rate |
2.5Mbps |
|
Data Bus |
8-bit ISA |
|
Topology |
Linear bus |
|
Wiring Type |
RG-62A/U 93ohm coaxial |
|
Boot ROM |
Available |
|
NODE ADDRESS SELECTION | ||||||||
|
Address |
SW3/1 |
SW3/2 |
SW3/3 |
SW3/4 |
SW3/5 |
SW3/6 |
SW3/7 |
SW3/8 |
|
0 |
On |
On |
On |
On |
On |
On |
On |
On |
|
1 |
On |
On |
On |
On |
On |
On |
On |
Off |
|
2 |
On |
On |
On |
On |
On |
On |
Off |
On |
|
3 |
On |
On |
On |
On |
On |
On |
Off |
Off |
|
4 |
On |
On |
On |
On |
On |
Off |
On |
On |
|
251 |
Off |
Off |
Off |
Off |
Off |
On |
Off |
Off |
|
252 |
Off |
Off |
Off |
Off |
Off |
Off |
On |
On |
|
253 |
Off |
Off |
Off |
Off |
Off |
Off |
On |
Off |
|
254 |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
On |
|
255 |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
|
Note: A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch SW3/8 is the Least Significant Bit and switch SW3/1 is the Most Significant Bit. The switches have the following decimal values: switch SW3/8=1, SW3/7=2, SW3/6=4, SW3/5=8, SW3/4=16, SW3/3=32, SW3/2=64, SW3/1=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (on=0, off=1) | ||||||||
|
SHARED RAM CONFIGURATION | ||||
|
Address |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
|
C0000h |
Off |
Off |
Off |
Off |
|
C4000h |
Off |
Off |
Off |
On |
|
C8000h |
Off |
Off |
On |
Off |
|
CC000h |
Off |
Off |
On |
On |
|
D0000h |
Off |
On |
Off |
Off |
|
D4000h |
Off |
On |
Off |
On |
|
D8000h |
Off |
On |
On |
Off |
|
DC000h |
Off |
On |
On |
On |
|
E0000h |
On |
Off |
Off |
Off |
|
E4000h |
On |
Off |
Off |
On |
|
E8000h |
On |
Off |
On |
Off |
|
EC000h |
On |
Off |
On |
On |
|
F0000h |
On |
On |
Off |
Off |
|
F4000h |
On |
On |
Off |
On |
|
F8000h |
On |
On |
On |
Off |
|
FC000h |
On |
On |
On |
On |
|
INTERRUPT SELECTION | |||||
|
IRQ |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
SW2/8 |
|
2 |
On |
Off |
Off |
Off |
Off |
|
3 |
Off |
On |
Off |
Off |
Off |
|
4 |
Off |
Off |
On |
Off |
Off |
|
5 |
Off |
Off |
Off |
On |
Off |
|
7 |
Off |
Off |
Off |
Off |
On |
|
TIME OUT CONFIGURATION | ||||
|
Response (micro Sec) |
Reconfig. (ms) |
Distance |
SW1/1 |
SW1/2 |
|
74.7 |
840 |
3.8 miles |
Off |
Off |
|
283.4 |
1680 |
17.5 miles |
Off |
On |
|
561.8 |
1680 |
35.5 miles |
On |
Off |
|
1118.6 |
1680 |
71.4miles |
On |
On |
|
BASE I/O ADDRESS SELECTION | |||||
|
Address |
SW1/7 |
SW1/8 |
SW2/1 |
SW2/2 |
SW2/3 |
|
200h |
Off |
Off |
Off |
Off |
Off |
|
210h |
Off |
Off |
Off |
Off |
On |
|
220h |
Off |
Off |
Off |
On |
Off |
|
230h |
Off |
Off |
Off |
On |
On |
|
240h |
Off |
Off |
On |
Off |
Off |
|
250h |
Off |
Off |
On |
Off |
On |
|
260h |
Off |
Off |
On |
On |
Off |
|
270h |
Off |
Off |
On |
On |
On |
|
280h |
Off |
On |
Off |
Off |
Off |
|
290h |
Off |
On |
Off |
Off |
On |
|
2A0h |
Off |
On |
Off |
On |
Off |
|
2B0h |
Off |
On |
Off |
On |
On |
|
2C0h |
Off |
On |
On |
Off |
Off |
|
2D0h |
Off |
On |
On |
Off |
On |
|
2E0h |
Off |
On |
On |
On |
Off |
|
2F0h |
Off |
On |
On |
On |
On |
|
300h |
On |
Off |
Off |
Off |
Off |
|
310h |
On |
Off |
Off |
Off |
On |
|
320h |
On |
Off |
Off |
On |
Off |
|
330h |
On |
Off |
Off |
On |
On |
|
340h |
On |
Off |
On |
Off |
Off |
|
350h |
On |
Off |
On |
Off |
On |
|
360h |
On |
Off |
On |
On |
Off |
|
370h |
On |
Off |
On |
On |
On |
|
380h |
On |
On |
Off |
Off |
Off |
|
390h |
On |
On |
Off |
Off |
On |
|
3A0h |
On |
On |
Off |
On |
Off |
|
3B0h |
On |
On |
Off |
On |
On |
|
3C0h |
On |
On |
On |
Off |
Off |
|
3D0h |
On |
On |
On |
Off |
On |
|
3E0h |
On |
On |
On |
On |
Off |
|
3F0h |
On |
On |
On |
On |
On |
|
DIAGNOSTIC LED(S) | ||
|
LED |
Status |
Condition |
|
LED1 |
On |
Network connection is good |
|
LED1 |
Blinking |
Network reconfigurations occuring |
|
LED1 |
Off |
Network connection is bad |
