MULTI-TECH SYSTEMS, INC.
ISI502Q
|
Card Type |
Serial controller |
|
Chipset/Controller |
16450/16550A |
|
I/O Options |
Serial ports (2) |
|
Maximum DRAM |
N/A |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Serial port 2 |
CN2 |
|
PRIMARY PORT I/O ADDRESS SELECT | |||||||||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 | |
|
2F8h |
Off |
On |
On |
On |
On |
Off |
On |
Off | |
|
3F8h |
Off |
On |
On |
On |
On |
On |
On |
Off | |
|
3E8h |
Off |
Off |
On |
On |
On |
On |
On |
Off | |
|
2E8h |
Off |
Off |
On |
On |
On |
Off |
On |
Off | |
|
SECONDARY PORT I/O ADDRESS SELECT | |||||||||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 | |
|
2F0h |
Off |
On |
On |
On |
On |
Off |
On |
Off | |
|
3F0h |
Off |
On |
On |
On |
On |
On |
On |
Off | |
|
3E0h |
Off |
Off |
On |
On |
On |
On |
On |
Off | |
|
2E0h |
Off |
Off |
On |
On |
On |
Off |
On |
Off | |
|
PRIMARY SERIAL PORT INTERRUPT SELECT | ||||||
|
IRQ |
J2/A |
J2/B |
J2/C |
J2/D |
J2/E | |
|
IRQ4 |
Open |
Open |
Closed |
Open |
Open | |
|
IRQ3 |
Open |
Closed |
Open |
Open |
Open | |
|
IRQ2 |
Closed |
Open |
Open |
Open |
Open | |
|
IRQ5 |
Open |
Open |
Open |
Closed |
Open | |
|
IRQ7 |
Open |
Open |
Open |
Open |
Closed | |
|
SECONDARY SERIAL PORT INTERRUPT SELECT | ||||||
|
IRQ |
J1/A |
J1/B |
J1/C |
J1/D |
J1/E | |
|
IRQ5 |
Open |
Open |
Open |
Closed |
Open | |
|
IRQ3 |
Open |
Closed |
Open |
Open |
Open | |
|
IRQ4 |
Open |
Open |
Closed |
Open |
Open | |
|
IRQ2 |
Closed |
Open |
Open |
Open |
Open | |
|
IRQ7 |
Open |
Open |
Open |
Open |
Closed | |