![background image](http://html1.mh-extra.com/html/acces/icom-2s/icom-2s_user-manual_3636782021.webp)
4-3
Manual MICOM-2S.Eb
The following table lists standard DOS COM port addresses.
Serial
COM Port
IRQ
Base Hex
Address
Address Switch Settings
A9 A8 A7 A6 A5 A4 A3
COM1
IRQ 4
3F8
1
1
1
1
1
1
1
COM2
IRQ 3
2F8
1
0
1
1
1
1
1
COM3
IRQ 4
3E8
1
1
1
1
1
0
1
COM4
IRQ 3
2E8
1
0
1
1
1
0
1
Table 4-4:
Standard COM Port Addresses
Notice that only two interrupts are assigned to four serial ports. "Sharing" interrupts is not a good idea
if both ports are used at the same time.
Summary of Contents for ICOM-2S
Page 2: ......
Page 22: ...ICOM 2S Manual 4 4 Manual MICOM 2S Eb...