61 143926(A)
Appendix D – DMA, IRQ and 1
st
MB Memory
DMA Channel Assignments
Table C–1. DMA
C
hannel Assignments
Channel
Description
0
Available
1
Available
2
Floppy Disk (8-bit transfer)
3
Available
4
Cascade for DMA controller 1
5
Sound
6
Available
7
Available
IRQ Mapping Chart
Table C–2. IRQ Mapping
IRQ0
System Timer
IRQ8
RTC Clock
IRQ1 Keyboard
IRQ9 AC97
Audio
IRQ2
IRQ Controller
IRQ10
IRQ Holder for PCI steering
IRQ3 (COM2)
IRQ11 ICH4
USB2.0
IRQ4 (COM1)
IRQ12 PS/2
Mouse
IRQ5
Intel ICH4 LAN
IRQ13
FPU
IRQ6 FDC
IRQ14 Primary
IDE
IRQ7 LPT1
IRQ15 Secondary
IDE
Note
All IRQs have been assigned to the listed devices, so if you want to add any
additional device interface, you must free the unused IRQ first. For example, if you
don’t use USB K/B or Mouse, then IRQ10 may be set free.
Содержание 4115T
Страница 1: ...2005 XYCOM AUTOMATION INC Printed in the United States of America 4115T 15 Light Duty Industrial PC...
Страница 14: ...4115T Thin Line Industrial Flat Panel PC Chapter 2 Installation 10 143926 A Figure 2 3 Panel Mounting Diagram...
Страница 16: ...4115T Thin Line Industrial Flat Panel PC Chapter 2 Installation 12 143926 A Figure 2 5 Wall Mounting Diagram...
Страница 53: ...4115T Light Duty Industrial PC Chapter 5 Troubleshooting 49 143926 A Figure 5 1 Serial Loopback Connections...