App-3
PL-7900 Series User Manual
Appendix
3
IRQ Mapping
Hardware Interruption List
DMA Channel List
For 8-bit transmission
For 16-bit transmission
^
Description
DMA 0
DMA 1
DMA 2
Floppy disk controller
DMA 3
DMA 4
Cascade to controller 1
DMA 5
DMA 6
DMA 7
^
Description
NMI
Parity Error or I/O Channel Check
IRQ 0 Timer (in the Chipset)
IRQ 1 Keyboard
IRQ 2 Cascade from Controller 2
IRQ 3 Serial Port 2 (COM2): General Use Port
IRQ 4 Serial Port 1 (COM1): General Use Port
IRQ 5 Available for users
IRQ 6 Floppy Disk Controller
IRQ 7 Parallel Port 1 (LPT1) : Printer Port
IRQ 8 Real Time Clock
IRQ 9 Serial Port 3 (COM3): General Use Port
IRQ 10 Serial Port 4 (COM4): Touch Panel
IRQ 11 Available for users
IRQ 12 PS/2 Mouse
IRQ 13 Numeric Data Processor
IRQ 14 Hard Disk (IDE)
IRQ 15 Available for users
Содержание PL-7900 Series
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