Keyboard And Mouse; Interrupt Requests (Irqs - NEC PowerMate SPB-Wash User Manual

Keyboard and Mouse

T
External PS/2 type keyboard and mouse ports
T
PS/2-type keyboard and mouse
T
Optional PS/2-compatible multimedia keyboard
T
Optional PS/2-compatible 3D mouse

Interrupt Requests (IRQs)

IRQ Normal Assignment
NMI I/O channel check
0 Reserved, interval timer
1 Reserved, keyboard controller
2 Reserved, cascade interrupt from slave PIC
3 COM2*
4 COM1*
5 LPT2 (Plug and Play option)/audio/user available
6 Diskette drive controller
7 Parallel port 1 (LPT1*)
8 Real time clock
9 Reserved
10* User available
11* Windows Sound System*/user available
12 PS/2 mouse port if present, else is user available
13 Reserved, numeric processor
14 Primary IDE channel if present, else is user available
15 Secondary IDE channel if present, else is user available
*Default setting. Can be changed to another IRQ.
Interrupt Assignments
System Specifications B-11