Ampro Corporation Littleboard 550 manual Interrupt Channel Assignments, Memory Map

Page 29

Chapter 3

Hardware

Interrupt Channel Assignments

The channel interrupt assignments are shown in Table 3-1.

Table 3-1. Interrupt Channel Assignments

 

Device vs IRQ No.

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

 

Timer

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Keyboard

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Secondary

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cascade

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM1

 

 

 

 

O

D

 

 

 

 

 

 

 

 

 

 

 

 

 

COM2

 

 

 

 

D

O

 

 

 

 

 

 

 

 

 

 

 

 

 

COM3

 

 

 

 

O

O

 

 

 

 

 

O

D

 

 

 

 

 

 

COM4

 

 

 

 

O

O

 

 

 

 

 

D

O

 

 

 

 

 

 

Floppy

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

Parallel

 

 

 

 

 

 

O

 

D

 

 

 

 

 

 

 

 

 

 

RTC

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

IDE Primary

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

O

 

IDE Secondary

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

X

 

Math Coprocessor

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

PS/2 Mouse

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

PCI INTA

 

 

 

 

 

 

 

Automatically Assigned

 

 

 

PCI INTB

 

 

 

 

 

 

 

Automatically Assigned

 

 

 

PCI INTC

 

 

 

 

 

 

 

Automatically Assigned

 

 

 

PCI INTD

 

 

 

 

 

 

 

Automatically Assigned

 

 

 

Sound Blaster

 

 

 

 

 

 

D

 

O

 

O

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB

 

 

 

 

 

 

 

Automatically Assigned

 

 

 

VGA

 

 

 

 

 

 

 

Automatically Assigned

 

 

 

Ethernet

 

 

 

 

 

 

 

Automatically Assigned

 

 

 

Legend: D = Default, O = Optional, X = Fixed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE

The IRQs for the Ethernet, Video, and Internal Local Bus (ISA) are

 

 

 

 

automatically assigned by the BIOS Plug and Play logic. Local IRQs

 

 

 

 

assigned during initialization can not be used by external devices.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Memory Map

The following table provides the common PC/AT memory allocations. Memory below 000500h is used by the BIOS.

LittleBoard 550

Reference Manual

23

Image 29
Contents LittleBoard Single Board Computer Reference Manual Audience Assumptions Contents Appendix a List of Tables Table A-1 Reference Material SpecificationsPurpose of this Manual Other LittleBoard Products Related Ampro ProductsLittleBoard 550 Support Products Other Ampro Products Chapter EBX Architecture Product OverviewStacking PC/104 Modules with the LittleBoard Product DescriptionBoard Features Chapter Chapter ATA Block DiagramChip Type Mfg Model Description Function Major Integrated Circuits ICsVIA CPUJack # Signal Description Connector DefinitionsAdditional Components DIMM1Northb Default Jumper # Installed Removed/InstalledIndicator Definition Jumper DefinitionsThb Dimension SpecificationsPhysical Specifications LittleBoard 550 Dimensions Top view, #1 Mechanical Specifications115 705 415 730 200 050 350 800 600 385 345 Thermal/Cooling Requirements Power SpecificationsEnvironmental Specifications Reference Manual LittleBoard USB OverviewMemory CPU U1Sdram Memory DIMM1 Flash Memory U17Memory Map Interrupt Channel AssignmentsBase Address Function Address MapAddress hex Subsystem VGAPC/104-Plus Interface J21 Pin # Signal Input Description OutputREQ0 IDSEL0GNT1 CLK2CLK0 REQ2Intd IntaREQ1 IDSEL1GNT2 CLK3IDSEL3 IDSEL2GNT0 CLK1PC/104 Interface J1A,B,C,D Pin # Signal Description J1 Row aPin # Signal Descriptions J1 Row B DRQ3 DACK3DACK1 DRQ1Pin # Signal Descriptions J1 Row D Pin # Signal Descriptions J1 Row CIRQ14 IRQ15DACK0 DRQ0IDE Interface J12, J17 Pin # Signal DescriptionPdiow PdreqPdior PdiordySDD6 SDD8SDD9 SDD5SDA0 SDA1SDA2 SDCS1#VCC CompactFlash Adapter J23PDCE1 Pdrst PDCE2Floppy Drive Interface J14 Parallel Port Interface J15 Pin # Signal In/Out DescriptionRS485 Serial Port Implementation Serial Interfaces J11, J13DSR1 DCD1RXD1 RTS1DTR2 CTS2DCD3 DSR3DSR4 DCD4RXD4 RTS4Utility 1 Interface J16 Utility InterfacesSystem Management Bus SMBus Utility 2 Interface J24Mouse Interface Sdram Eprom USB Signals USB0 and USB1Component Address Binary Pwrbt SuscBatlow MdataUtility 3 Interface J18 USB Signals USB2 and USB3TX+ Ethernet Interfaces J7, J32Audio Interface J28 Videognd VideolVideor CDLCRT Interface Video Interfaces J3, J4, J5, J31LCD Interface Enavdd Lvds Interface Pin # Signal Description Line ChannelOops! Jumper Bios Recovery Temperature MonitoringMiscellaneous Real Time Clock RTCHot Cable Jumper Watchdog TimerPower Monitor Power Interface J10CPU Fan TAGReference Manual LittleBoard Introduction Accessing Bios Setup VGA DisplayBios Setup Menu Item/Topic Accessing Bios Setup Serial ConsoleBios Setup Opening Screen Bios MenusDrive Configurations and Boot Options Bios Configuration ScreenDate & Time Drive Assignment# of Floppy Drives Bios Settings Drive and Boot Options Boot OrderUser Interface Keyboard and Mouse ConfigurationUser Interface Options Memory Memory Control OptionsAdvanced features Power Management and Advanced User OptionsPower Management On-Board Serial Ports On-Board LPT Port On-Board Video Video, Flat Panel, and Audio OptionsOn-Board Controllers PCI, Plug n Play, and Interrupt Assignments Chapter Bios Setup Chapter Bios Setup Chapter Bios Setup Converting the Splash Screen File Splash Screen CustomizationSplash Screen Image Requirements \splashconvert convert.idf Method Contact Information Appendix a Technical SupportAppendix a Technical Support Connector Designation Pin # Mfg Part Number Appendix B Appendix C LAN Boot Option Accessing PXE Boot Agent Bios Setup PXE Boot Agent Bios SetupTCP/IP Configuration PXE Boot Agent Setup ScreenPXE Configuration RPL Configuration NetWare ConfigurationCRT CD-ROMPost Documentation and Support Software Doc & SW CD-ROMWDT Supported featuresReference Manual LittleBoard