Ampro Corporation Littleboard 550 Address Map, Base Address Function, Address hex Subsystem, Vga

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Chapter 3

 

 

Hardware

Table 3-2. Memory Map

 

 

 

 

 

 

 

 

Base Address

Function

 

 

00000000h

-

0009FFFFh

Conventional Memory

 

 

 

 

 

 

 

 

000A0000h

-

000AFFFFh

Graphics Memory

 

 

000B0000h

-

000B7FFFh

Mono Text Memory

 

 

 

 

 

 

 

 

000B8000h

-

000BFFFFh

Color Text Memory

 

 

 

 

 

 

 

 

000C0000h

-

000C7FFFh

Standard Video BIOS

 

 

000F0000h

-

000FFFFFh

System BIOS Area (Storage and RAM Shadowing)

 

 

 

 

 

 

 

 

00100000h

-

04000000h

Extended Memory (If onboard VGA is enabled, then the amount

 

 

 

 

 

of memory assigned is subtracted from extended memory)

 

 

FFF80000h

-

FFFFFFFFh

System Flash

 

 

 

 

 

 

 

I/O Address Map

Table 3-3 shows the I/O address map.

Table 3-3. I/O Address Map

Address (hex)

Subsystem

000-00F

Primary DMA Controller

 

 

020-021

Master interrupt Controller

040-043

Programmable Interrupt Timer (Clock/Timer)

 

 

060-06F

Keyboard Controller

 

 

070-07F

CMOS RAM, NMI Mask Reg, RT Clock

080-09F

DMA Page Registers

 

 

092

Fast A20 gate and CPU reset

 

 

094

Motherboard enable

 

 

102

Video subsystem register

0A0-0BF

Slave Interrupt Controller

 

 

0C0-0DF

Slave DMA Controller #2

 

 

0F0-0FF

Math Coprocessor

170-177

Secondary IDE Hard Disk Controller

 

 

1F0-1F8

Primary IDE Hard Disk Controller

 

 

278-27F

Parallel Printer

2E8-2FF

Serial Port 4 (COM4)

 

 

2F8-2FF

Serial Port 2 (COM2)

 

 

378-37F

Parallel port (Standard and EPP)

3C0-3DF

VGA

 

 

3E8-3EF

Serial Port 3 (COM3)

 

 

3F0-3F7

Floppy Disk Controller

3F8-3FF

Serial Port 1 (COM1)

 

 

778-77A

Parallel Port (ECP Extensions) (Port 378+400)

 

 

CF8-CFF

PCI bus Configuration Address and Data

 

 

24

Reference Manual

LittleBoard 550

Image 30
Contents LittleBoard Single Board Computer Reference Manual Audience Assumptions Contents Appendix a List of Tables Table A-1 Specifications Purpose of this ManualReference Material Related Ampro Products LittleBoard 550 Support ProductsOther LittleBoard Products Other Ampro Products Chapter Product Overview EBX ArchitectureProduct Description Stacking PC/104 Modules with the LittleBoardBoard Features Chapter Chapter Block Diagram ATAVIA Major Integrated Circuits ICsChip Type Mfg Model Description Function CPUAdditional Components Connector DefinitionsJack # Signal Description DIMM1Northb Indicator Definition Jumper # Installed Removed/InstalledDefault Jumper DefinitionsThb Specifications Physical SpecificationsDimension Mechanical Specifications LittleBoard 550 Dimensions Top view, #1115 705 415 730 200 050 350 800 600 385 345 Power Specifications Environmental SpecificationsThermal/Cooling Requirements Reference Manual LittleBoard Overview USBSdram Memory DIMM1 CPU U1Memory Flash Memory U17Interrupt Channel Assignments Memory MapAddress hex Subsystem Address MapBase Address Function VGAPin # Signal Input Description Output PC/104-Plus Interface J21GNT1 IDSEL0REQ0 CLK2Intd REQ2CLK0 IntaGNT2 IDSEL1REQ1 CLK3GNT0 IDSEL2IDSEL3 CLK1Pin # Signal Description J1 Row a PC/104 Interface J1A,B,C,DPin # Signal Descriptions J1 Row B DACK1 DACK3DRQ3 DRQ1Pin # Signal Descriptions J1 Row C Pin # Signal Descriptions J1 Row DDACK0 IRQ15IRQ14 DRQ0Pin # Signal Description IDE Interface J12, J17Pdior PdreqPdiow PdiordySDD9 SDD8SDD6 SDD5SDA2 SDA1SDA0 SDCS1#CompactFlash Adapter J23 PDCE1VCC PDCE2 PdrstFloppy Drive Interface J14 Pin # Signal In/Out Description Parallel Port Interface J15Serial Interfaces J11, J13 RS485 Serial Port ImplementationRXD1 DCD1DSR1 RTS1DCD3 CTS2DTR2 DSR3RXD4 DCD4DSR4 RTS4Utility Interfaces Utility 1 Interface J16Utility 2 Interface J24 Mouse InterfaceSystem Management Bus SMBus USB Signals USB0 and USB1 Component Address BinarySdram Eprom Batlow SuscPwrbt MdataUSB Signals USB2 and USB3 Utility 3 Interface J18Ethernet Interfaces J7, J32 TX+Audio Interface J28 Videor VideolVideognd CDLVideo Interfaces J3, J4, J5, J31 CRT InterfaceLCD Interface Enavdd Pin # Signal Description Line Channel Lvds InterfaceMiscellaneous Temperature MonitoringOops! Jumper Bios Recovery Real Time Clock RTCWatchdog Timer Hot Cable JumperCPU Fan Power Interface J10Power Monitor TAGReference Manual LittleBoard Accessing Bios Setup VGA Display IntroductionAccessing Bios Setup Serial Console Bios Setup Menu Item/TopicBios Menus Bios Setup Opening ScreenDate & Time Bios Configuration ScreenDrive Configurations and Boot Options Drive Assignment# of Floppy Drives Bios Settings Boot Order Drive and Boot OptionsKeyboard and Mouse Configuration User Interface OptionsUser Interface Memory Control Options MemoryPower Management and Advanced User Options Power ManagementAdvanced features On-Board Serial Ports On-Board LPT Port Video, Flat Panel, and Audio Options On-Board ControllersOn-Board Video PCI, Plug n Play, and Interrupt Assignments Chapter Bios Setup Chapter Bios Setup Chapter Bios Setup Splash Screen Customization Splash Screen Image RequirementsConverting the Splash Screen File \splashconvert convert.idf Appendix a Technical Support Method Contact InformationAppendix a Technical Support Connector Designation Pin # Mfg Part Number Appendix B Appendix C LAN Boot Option PXE Boot Agent Bios Setup Accessing PXE Boot Agent Bios SetupPXE Boot Agent Setup Screen PXE ConfigurationTCP/IP Configuration NetWare Configuration RPL ConfigurationCD-ROM CRTDocumentation and Support Software Doc & SW CD-ROM PostSupported features WDTReference Manual LittleBoard