Advantech SOM-4450 ETX B.3 Interrupt assignments

26 SOM-4450 User's Manual

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

Contents

Main Copyright notice Acknowledgements Packing list Version History Contents Chapter 1 General Information ..................................... 1 Chapter 2 Connector Assignments and Descriptions 9 CHAPTER 3 Software Configuration (optional) ........ 13 Page Page General Information 1.1 Introduction 1.2 Specifications 1.2.1 Standard System On Module SBC functions 1.2.2 Local-bus VGA interface Page 1.2.7 SSD Support 1.2.8 Mechanical and environmental Page Page Page Page Page Page Page Page 3.1 Introduction 3.2 Utility CD disk 3.3 VGA display software configuration Note: Make sure that you do not run AWDFLASH.EXE while your system is operating in EMM386 mode. 3.4 Connections for two standard LCDs 3.4.1 Connections for Toshiba LTM10C042(640 x 480 TFT color LCD) Chapter 3 Software Configuration 17 3.4.2 Connections for Toshiba LTM12C275A (800 x 600 TFT color LCD) Table 3-2: Connections for Toshiba LTM12C275A Page A A.1 Programming the watchdog timer Page Page Page B.1 System I/O ports ** default setting B.2 DMA channel assignments B.3 Interrupt assignments USB and Ethernet IRQ is automatically set by the system B.4 1st MB memory map * default setting Page Page C.1 LVDS Introduction C.2 LVDS Pin assingments 32 SOM-4450 User's Manual