Intel SOM-4486 B.3 Interrupt assignments

SOM-4486 User’s Manual 42

B.3 Interrupt assignments

Table B.3: Interrupt assignments

Interrupt# Interrupt source

NMI Parity error detected

IRQ 0 Interval timer

IRQ 1 Keyboard

IRQ 2 Interrupt from controller 2 (cascade)

IRQ 3 Serial communication port 2

IRQ 4 Serial communication port 1

IRQ 5 Available

IRQ 6 Diskette controller (FDC)

IRQ 7 Parallel port 1 (print port)

IRQ 8 Real-time clock

IRQ 9 Reserve

IRQ 10 Available

IRQ 11 Reserved for watchdog timer

IRQ 12 PS/2 mouse

IRQ 13 INT from co-processor

IRQ 14 Preliminary IDE

IRQ 15 Secondary IDE for CompactFlash

USB and Ethernet IRQ is automatically set by the system

Contents

Main Page Packing List SOM-4486 Users Manual iv FCC Contents Chapter 1 Introduction...................................................... 2 Chapter 2 Connector Assignments .................................10 Chapter 3 Software Configuration .................................14 Chapter 4 PCI Graphic Setup.........................................18 Chapter 6 LCI Bus Ethernet Interface...........................30 Appendix A Prog. Watchdog Timer ..................................36 Appendix B System Assignments .......................................40 General Information Chapter 1 Introduction 1.1 Introduction 1.2 Specifications 1.2.1 Standard System On Module functions 1.2.2 VGA/flat panel Interface 1.2.3 Audio function 1.2.4 LCI 1.2.5 Mechanical and environmental Page Page Page Page Page Page 2.3 Safety precautions Page Page Chapter 3 Software Configuration 3.1 Introduction 3.2 Utility CD disk 3.3 VGA display software configuration Page 3.4 Connections for two channel LVDS 3.4.1 SOM-4486 X3 Table 3.1: LVDS Pin assingments Page Chapter 4 PCI Graphic Setup 4.1 Introduction 4.1.1 Chipset 4.1.2 Display memory 4.1.3 Display types Page 4.2 Installation of the PCI Graphic driver 4.2.1 Installation for Windows 98/ME/2000/XP Page Page Page Page Audio Setup Chapter 5 Audio Setup 5.1 Introduction 5.2 Driver installation 5.2.1 Before you begin Page Page LAN Configuration Chapter 6 LCI Bus Ethernet Interface 6.1 Introduction 6.2 Features 6.3 Installation of Ethernet Driver Page Page Page Page A Appendix A Prog. Watchdog Timer A.1 Watchdog programming Page Page Page Appendix B System Assignments B.1 System I/O ports Table B.1: System I/O ports B.2 DMA channel assignments Table B.2: DMA channel assignments B.3 Interrupt assignments Table B.3: Interrupt assignments B.4 1st MB memory map Table B.4: 1st MB memory map