Serial Ports (IBM PC)
ASCII Codes •
Harware Interrupts •
Serial Ports
|
COM
|
PC/ISA
IRQ/Address |
PS2/MCA |
|
1
|
4/03F8h
|
4/03F8h
|
|
2
|
3/02F8h
|
3/02F8h
|
|
3
|
4/03F8h
|
3/3220h
|
|
4
|
3/02F8h
|
3/3228h
|
|
5
|
not available
|
3/4220h
|
|
6
|
not available
|
3/4228h
|
|
7
|
not available
|
3/5220h
|
|
8
|
not available
|
3/5228h
|
|
|
|