ZENITH DATA SYSTEMS
LAN4TR-AT
|
NIC Type |
Token-Ring |
|
Transfer Rate |
4Mbps |
|
Data Bus |
16-bit ISA |
|
Topology |
Ring |
|
Wiring Type |
Shielded/Unshielded twisted pair |
|
Boot ROM |
Available |
|
LLC EPROM ENABLED | ||
|
Setting |
JP1 | |
|
External EPROMs disabled |
Closed | |
|
External EPROMs enabled |
Open | |
|
Note:The LLC EPROMs contain the Logic Link Control program. The card will function properly with the LLC chips
| ||
|
I/O BASE ADDRESS | ||
|
Address |
SW1/1 |
SW1/2 |
|
A00 - A0Fh |
On |
On |
|
A20 - A2Fh |
On |
Off |
|
A40 - A4Fh |
Off |
On |
|
A60 - A6Fh |
Off |
Off |
|
INTERRUPT REQUEST | ||
|
IRQ |
SW1/3 |
SW1/4 |
|
3 |
On |
On |
|
9 |
On |
Off |
|
10 |
Off |
On |
|
11 |
Off |
Off |
|
BOOT ROM ADDRESS | |||
|
Address |
Boot ROM Size |
SW1/5 |
SW1/6 |
|
CC000 - CCFFFh |
4KB |
On |
On |
|
D0000 - D3FFFh |
16KB |
On |
Off |
|
D8000 - D8FFFh |
4KB |
Off |
On |
|
DC000 - DFFFFh |
16KB |
Off |
Off |
|
DMA CHANNEL | ||
|
Channel |
SW1/7 |
SW1/8 |
|
DMA0 |
On |
On |
|
DMA5 |
On |
Off |
|
DMA6 |
Off |
On |
|
DMA7 |
Off |
Off |