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7-8
Specifications
Interrupt Controllers
Using interrupts, hardware can request software services. If non-Plug and Play software is being
used, the interrupt may need to be moved for software application or driver compatibility. Some
interrupts cannot be moved. Fifteen interrupts can be used with a cascade connection of
8259INTC x 2. The table shows default interrupt level assignments 0 through 15, in order of
decreasing priority.
Priority
Name
Device
0
IRQ00
Internal Timer 1
1
IRQ01
Keyboard
2
IRQ02
INT from Controller 2
3
IRQ08
Real-time Clock
4
IRQ09
Reserved for ACPI SCI
5
IRQ10
PC Cardbus/LAN/Video/USB
6
IRQ11
Available
7
IRQ12
PS/2 Mouse/NEC VersaGlide
8
IRQ13
Numeric Data Processor
9
IRQ14
Hard Disk Controller 1
10
IRQ15
Not Used
11
IRQ03 or IRQ04
12
IRQ04 or IRQ03
Available
13
IRQ05 or IRQ09
Sound/Modem or PC CardBus
14
IRQ06
Diskette Drive Controller
15
IRQ07
Printer Port (LPT1)
Содержание Versa TXi Series
Страница 1: ...NEC Versa TXi Series Notebook Computers VERSA TXi S E R V I C E M A N U A L ...
Страница 42: ...3 Disassembly and Reassembly n Required Tools and Equipment n Disassembly n Reassembly ...
Страница 72: ...6 Troubleshooting n Problem Checklist n Startup Problems n Diagnostics ...
Страница 81: ...7 Specifications n System Components n Memory Map n Interrupt Controllers ...