Mitsubishi Apricot LS Series Owner's Handbook Manual page 64

Interrupts
IRQ System Resource
NMI I/O channel check
0 Reserved, interval timer
1 Reserved, ke board buffer full
2 Reserved, cascade interrupt from slave PIC
3 Serial Port 2
4 Serial Port 1
5 Parallel Port 2 (Plug and Pla option)
6 Flopp drive
7 Parallel Port 1
8 Real-time clock
9 Reserved
10 User available
11 Audio
12 Onboard mouse port if present, else user available
13 Reserved, math coprocessor
14 Primar IDE if present, else user available
15 Secondar IDE if present, else user available
1
1
1
1
if present, else user available
1
Default, but can be changed to another IRQ
S y s t e m m o t h e r b o a r d
LS700 HANDBOOK 3/21