Irq and i/o port address, Interrupt request, Appendix c – NEC 140He User Manual
Page 329
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Appendix C
IRQ and I/O Port Address
The factory-set interrupt requests and I/O port addresses are listed below. Find an appropriate one to install an optional
device.
Interrupt Request
The factory-set IRQs are assigned as follows:
IRQ
Peripheral Device (Controller) IRQ
Peripheral Device (Controller)
0
System timer
8
Real-time clock
1 Keyboard
9 PCI/SCI
2 Cascaded
connection
10 PCI
3
COM B serial port (PCI)
11
BMCIRQ/PCI
4
COM A serial port (PCI)
12
Mouse
5
PCI/LPT2 parallel port
13
Numeric processor
6
Floppy disk
14
Primary IDE (CD-ROM drive)
7 LPT1
parallel
port
15 PCI
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