COMTROL CORPORATION
HOSTESS 4/8, HOSTESS 550 4/8
Card Type | Serial |
Chipset | 16450 (Hostess 4/8) or 16550 (Hostess 550 4/8) |
I/O Options | Serial ports (8) |
Data Bus | 16-bit ISA |
Card Size | Full height, half length |
CONNECTIONS | |||
Function | Label | Function | Label |
Serial ports via 100-pin connector | J1 | Header for 4-port daughterboard | J3 |
Header for 4-port daughterboard | J2 |
USER CONFIGURABLE SETTINGS | |||
Setting | Label | Position | |
» | Card does not have 4-port daughterboard installed | JP1 | Pins 2 & 3 closed |
Card has 4-port daughterboard installed | JP1 | Pins 1 & 2 closed | |
Interrupt mask enabled | SW2/1 | On | |
Interrupt mask disabled | SW2/1 | Off | |
» | Factory configured - do not alter | SW2/8 | Unidentified |
Note:SW2/8 must be off if the daughterboard is installed. |
COMTROL MODE ADDRESS SELECTION | |||||||||
Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 | |
0000h | On | On | On | On | On | On | On | On | |
0020h | Off | On | On | On | On | On | On | On | |
0040h | On | Off | On | On | On | On | On | On | |
0060h | Off | Off | On | On | On | On | On | On | |
0080h | On | On | Off | On | On | On | On | On | |
» | 0280h | On | On | Off | On | Off | On | On | On |
1F60h | Off | Off | On | Off | Off | Off | Off | Off | |
1F80h | On | On | Off | Off | Off | Off | Off | Off | |
1FA0h | Off | On | Off | Off | Off | Off | Off | Off | |
1FC0h | On | Off | Off | Off | Off | Off | Off | Off | |
1FE0h | Off | Off | Off | Off | Off | Off | Off | Off | |
Note: A total of 512 base 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=4096, SW1/7=2048, SW1/6=1024, SW1/5=512, SW1/4=256, SW1/3=128, SW1/2=64, SW1/1=32. Turn off the switches and add the values of the switches that are off to obtain the correct memory address. (Off=1, On=0)SW1/1 must be off if the daughterboard is installed. |
INTERRUPT SELECTION | |||||||
Setting | JP2 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 | SW2/7 |
2 | Pins 1 & 2 | On | Off | Off | Off | Off | Off |
3 | Pins 1 & 2 | Off | On | Off | Off | Off | Off |
4 | Pins 1 & 2 | Off | Off | On | Off | Off | Off |
5 | Pins 1 & 2 | Off | Off | Off | On | Off | Off |
7 | Pins 2 & 3 | Off | Off | Off | Off | Off | Off |
10 | Pins 1 & 2 | Off | Off | Off | Off | On | Off |
11 | Pins 1 & 2 | Off | Off | Off | Off | Off | On |
Note:Pins designated are in the closed position. IRQ7 is only available on boards that have SW2 marked with INTERRUPT. |