EVEREX SYSTEMS, INC.
SPEEDARC (VER.1.0)
|
NIC Type |
ARCnet |
|
Network Transfer Rate |
2.5Mbps |
|
Data Bus |
8-bit ISA |
|
Topology |
Linear Bus |
|
Wiring Type |
RG-58A/U 50ohm coaxial |
|
Boot ROM |
Available (location unidentified) |
|
CONNECTIONS | |
|
Function |
Label |
|
RG-58A/U 50ohm coaxial port |
CN1 |
|
BASE I/O ADDRESS SELECTION | |||
|
Address |
JP2/6 |
JP2/7 |
JP2/8 |
|
260-26Fh |
On |
On |
On |
|
290-29Fh |
On |
On |
Off |
|
2E0-2EFh |
On |
Off |
On |
|
2F0-2FFh |
On |
Off |
Off |
|
300-30Fh |
Off |
On |
On |
|
350-35Fh |
Off |
On |
Off |
|
380-38Fh |
Off |
Off |
On |
|
3E0-3EFh |
Off |
Off |
Off |
|
INTERRUPT SELECTION | ||||||
|
IRQ |
JP1/A |
JP1/B |
JP1/C |
JP1/D |
JP1/E | |
|
2 |
Open |
Open |
Open |
Open |
Closed | |
|
3 |
Open |
Open |
Open |
Closed |
Open | |
|
4 |
Open |
Open |
Closed |
Open |
Open | |
|
5 |
Open |
Closed |
Open |
Open |
Open | |
|
7 |
Closed |
Open |
Open |
Open |
Open | |
|
NODE ADDRESS | ||||||||
|
Node |
JP/1 |
JP1/2 |
JP1/3 |
JP1/4 |
JP1/5 |
JP1/6 |
JP1/7 |
JP1/8 |
|
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 |
|
5 |
Off |
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: A total of 255 node address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/8 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. The switches have the following decimal values: SW1/8=128, SW1/7=64, SW1/6=32, SW1/5=16, SW1/4=8, SW1/3=4, SW1/2=2, SW1/1=1. Turn off the switches and add the values of the switches to obtain the correct memory address. | ||||||||
|
BOOT ROM CONFIGURATION | ||
|
Setting |
JP1/H | |
|
Disabled |
Open | |
|
Enabled |
Closed | |
|
EXTENDED TIMEOUTS SELECTION | |||||
|
Response Time |
Idle Time |
Reconfiguration Time |
JP1/F |
JP1/G | |
|
78 |
86 |
840 |
Open |
Open | |
|
285 |
316 |
1680 |
Open |
Closed | |
|
563 |
624 |
1680 |
Closed |
Open | |
|
1130 |
1237 |
1680 |
Closed |
Closed | |
|
RAM/PROM ADDRESS SELECTION | |||||||
|
RAM Address |
PROM Address |
JP2/1 |
JP2/2 |
JP2/3 |
JP2/4 |
JP2/5 | |
|
C:0000h - C:07FFh |
C:2000h - C:3FFFh |
On |
On |
On |
On |
On | |
|
C:0800h - C:0FFFh |
C:2000h - C:3FFFh |
On |
On |
On |
On |
Off | |
|
C:1000h - C:17FFh |
C:2000h - C:3FFFh |
On |
On |
On |
Off |
On | |
|
C:1800h - C:1FFFh |
C:2000h - C:3FFFh |
On |
On |
On |
Off |
Off | |
|
C:4000h - C:47FFh |
C:6000h - C:7FFFh |
On |
On |
Off |
On |
On | |
|
C:4800h - C:4FFFh |
C:6000h - C:7FFFh |
On |
On |
Off |
On |
Off | |
|
C:5000h - C:57FFh |
C:6000h - C:7FFFh |
On |
On |
Off |
Off |
On | |
|
C:5800h - C:5FFFh |
C:6000h - C:7FFFh |
On |
On |
Off |
Off |
Off | |
|
C:C000h - C:C7FFh |
C:E000h - C:FFFFh |
On |
Off |
On |
On |
On | |
|
C:C800h - C:CFFFh |
C:E000h - C:FFFFh |
On |
Off |
On |
On |
Off | |
|
C:D000h - C:D7FFh |
C:E000h - C:FFFFh |
On |
Off |
On |
Off |
On | |
|
C:D800h - C:DFFFh |
C:E000h - C:FFFFh |
On |
Off |
On |
Off |
Off | |
|
D:0000h - D:07FFh |
D:2000h - D:3FFFh |
On |
Off |
Off |
On |
On | |
|
D:0800h - D:0FFFh |
D:2000h - D:3FFFh |
On |
Off |
Off |
On |
Off | |
|
D:1000h - D:17FFh |
D:2000h - D:3FFFh |
On |
Off |
Off |
Off |
On | |
|
D:1800h - D:1FFFh |
D:2000h - D:3FFFh |
On |
Off |
Off |
Off |
Off | |
|
D:4000h - D:47FFh |
D:6000h - D:7FFFh |
Off |
On |
On |
On |
On | |
|
D:4800h - D:4FFFh |
D:6000h - D:7FFFh |
Off |
On |
On |
On |
Off | |
|
D:5000h - D:57FFh |
D:6000h - D:7FFFh |
Off |
On |
On |
Off |
On | |
|
D:5800h - D:5FFFh |
D:6000h - D:7FFFh |
Off |
On |
On |
Off |
Off | |
|
D:8000h - D:87FFh |
D:A000h - D:BFFFh |
Off |
On |
Off |
On |
On | |
|
D:8800h - D:8FFFh |
D:A000h - D:BFFFh |
Off |
On |
Off |
On |
Off | |
|
D:9000h - D:97FFh |
D:A000h - D:BFFFh |
Off |
On |
Off |
Off |
On | |
|
D:9800h - D:9FFFh |
D:A000h - D:BFFFh |
Off |
On |
Off |
Off |
Off | |
|
D:C000h - D:C7FFh |
D:E000h - D:FFFFh |
Off |
Off |
On |
On |
On | |
|
D:C800h - D:CFFFh |
D:E000h - D:FFFFh |
Off |
Off |
On |
On |
Off | |
|
D:D000h - D:D7FFh |
D:E000h - D:FFFFh |
Off |
Off |
On |
Off |
On | |
|
D:D800h - D:DFFFh |
D:E000h - D:FFFFh |
Off |
Off |
On |
Off |
Off | |
|
E:0000h - E:07FFh |
E:2000h - E:3FFFh |
Off |
Off |
Off |
On |
On | |
|
E:0800h - E:0FFFh |
E:2000h - E:3FFFh |
Off |
Off |
Off |
On |
Off | |
|
E:1000h - E:17FFh |
E:2000h - E:3FFFh |
Off |
Off |
Off |
Off |
On | |
|
E:1800h - E:1FFFh |
E:2000h - E:3FFFh |
Off |
Off |
Off |
Off |
Off | |