User manual

UNO-2170 User Manual 12
2.3.7 IRQ and Address Setting
The IRQ and I/O address range of COM3 and COM4 are listed below:
• COM3: 3E8
H
, IRQ10 (Independent IRQ), IRQ10 (Share IRQ)
• COM4: 2E8
H
, IRQ5 (Independent IRQ), IRQ10 (Share IRQ)
• Vector address for share IRQ: 1D0
H
You can set “Share IRQ” or “Independent IRQ” by the first switch of
SW4.
You can adjust the transmission rate by the second switch of SW4.
* To increase the normal baud rates by eight times, (e.g. if 115.2K bps is
set, the baud rate will be increased to 921.6K bps), set switch 2 of SW4
to “on”.
Table 2.2: IRQ Setting via switch 1 at SW4
Switch 1 at SW4 setting Function
Share IRQ (default)
Independent IRQ
Table 2.3: IRQ Setting via switch 1 at SW4
Switch 1 at SW4 setting Function
Speed x 8*
Speed x 1 (default)
1
2
O
N
1
2
O
N
1
2
O
N
1
2
O
N