Owner's manual
Table Of Contents
- ETX-CV
- Revision History
- Table of Contents
- Preface
- 1 Introduction
- 2 Specifications
- 3 Function Diagram
- 4 Mechanical Dimensions
- 5 Embedded Functions
- 6 Pin-out and Signal Descriptions
- 7 System Resources
- 8 BIOS Setup Utility
- 9 BIOS Checkpoints, Beep Codes
- Appendix A: Connectors and Mounting
- Important Safety Instructions
- Getting Service
ETX-CV User’s ManualPage 34
7.3 Interrupt Request (IRQ) Lines
PIC Mode
IRQ# Typical Interrupt Resource Connected to Pin Available
0 Counter 0 N/A No
1 Keyboard controller N/A No
2 Cascade interrupt from slave PIC N/A No
3 Serial Port 2 (COM2) / PCI IRQ3 via SERIRQ Note (1)
4 Serial Port 1 (COM1) / PCI IRQ4 via SERIRQ Note (1)
5 Parallel Port 2 (LPT2) / PCI IRQ5 via SERIRQ Note (1)
6 Floppy Drive Controller IRQ6 via SERIRQ No
7 Parallel Port 1 (LPT1) / PCI IRQ7 via SERIRQ, Note (1)
8 Real-time clock N/A No
9 SCI / PCI IRQ9 via SERIRQ Note (1)
10 PCI IRQ10 via SERIRQ Note (1)
11 PCI IRQ11 via SERIRQ Note (1)
12 PS/2 Mouse / PCI IRQ12 via SERIRQ Note (1)
13 Math Processor N/A No
14 Primary IDE controller / PCI IRQ14 via SERIRQ Note (1)
15 Secondary IDE controller / PCI IRQ15 via SERIRQ Note (1)
(1) These IRQs can be used for PCI devices when onboard device is disabled.
APIC Mode
IRQ# Typical Interrupt Resource Connected to Pin Available
0 Counter 0 N/A No
1 Keyboard controller N/A No
2 Cascade interrupt from slave PIC N/A No
3 Serial Port 2 (COM2) / PC IRQ3 via SERIRQ Note (1)
4 Serial Port 1 (COM1) / PCI IRQ4 via SERIRQ Note (1)
5 Parallel Port 2 (LPT2) / PCI IRQ5 via SERIRQ Note (1)
6 Floppy Drive Controller IRQ6 via SERIRQ No
7 Parallel Port 1 (LPT1) / PCI / ISA IRQ7 via SERIRQ Note (1)
8 Real-time clock N/A No
9 SCI / PCI IRQ9 via SERIRQ Note (1),
10 PCI IRQ10 via SERIRQ Note (1)
11 PCI IRQ11 via SERIRQ Note (1)
12 PS/2 Mouse / PCI IRQ12 via SERIRQ Note (1)
13 Math Processor N/A No
14 Primary IDE controller / PCI IRQ14 via SERIRQ Note (1)