COMTROL CORPORATION
HOSTESS
|
Card Type |
Multi-user serial controller |
|
Chipset/Controller |
Texas Instruments (UART) |
|
I/O Options |
Serial ports (4 or 8) |
|
Maximum DRAM |
N/A |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
100 Pin interface connector |
CN1 |
External reset connector 1 |
CN4 |
|
Upgrade connector 1 |
CN2 |
External reset connector 2 |
CN5 |
|
Upgrade connector 2 |
CN3 | ||
|
I/O ADDRESS SELECTION | |||||||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
|
100h |
On |
On |
On |
On |
Off |
On |
On |
|
140h |
On |
On |
On |
On |
Off |
On |
Off |
|
200h |
On |
On |
On |
Off |
On |
On |
On |
|
240h |
On |
On |
On |
Off |
On |
On |
Off |
|
280h |
On |
On |
On |
Off |
On |
Off |
On |
|
500h |
On |
On |
Off |
On |
Off |
On |
On |
|
540h |
On |
On |
Off |
On |
Off |
On |
Off |
|
580h |
On |
On |
Off |
On |
Off |
Off |
On |
|
600h |
On |
On |
Off |
Off |
On |
On |
On |
|
640h |
On |
On |
Off |
Off |
On |
On |
Off |
|
680h |
On |
On |
Off |
Off |
On |
Off |
On |
|
700h |
On |
On |
Off |
Off |
Off |
On |
On |
|
Note: Switch SW1/1 in on for the four port controller and Off for the eight port model. | |||||||
|
FOUR/EIGHT PORT SELECTION | |||
|
Number of Ports |
JP1 |
SW1/1 |
SW2/1 |
|
4 |
Pins 2 & 3 closed |
On |
On |
|
8 |
Pins 1 & 2 closed |
Off |
Off |
|
SERIAL PORT INTERRUPT SELECTION (MASK ENABLE ON) | |||||||
|
IRQ |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
|
2/9 |
On |
On |
Off |
Off |
Off |
Off |
Off |
|
3 |
On |
Off |
On |
Off |
Off |
Off |
Off |
|
4 |
On |
Off |
Off |
On |
Off |
Off |
Off |
|
5 |
On |
Off |
Off |
Off |
On |
Off |
Off |
|
10 |
On |
Off |
Off |
Off |
Off |
On |
Off |
|
11 |
On |
Off |
Off |
Off |
Off |
Off |
On |
|
SERIAL PORT INTERRUPT SELECT (MASK ENABLE OFF) | |||||||
|
IRQ |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
|
2/9 |
Off |
On |
Off |
Off |
Off |
Off |
Off |
|
3 |
Off |
Off |
On |
Off |
Off |
Off |
Off |
|
4 |
Off |
Off |
Off |
On |
Off |
Off |
Off |
|
5 |
Off |
Off |
Off |
Off |
On |
Off |
Off |
|
10 |
Off |
Off |
Off |
Off |
Off |
On |
Off |
|
11 |
Off |
Off |
Off |
Off |
Off |
Off |
On |
|
MISCELLANEOUS TECHNICAL NOTE |
|
Serial ports are located on an interface box which connects to Hostess via the 100-pin interface connector. |