Ampro Corporation Littleboard 550 manual CPU U1, Sdram Memory DIMM1, Flash Memory U17

Page 28

Chapter 3

Hardware

CPU (U1)

The LittleBoard 550 offers three VIA Technologies Eden processor choices; high performance 1GHz ESP 10000 processor, 533MHz ESP 5000 processor, or the low cost, 300MHz ESP3000 processor.

ESP Processors

The ESP (0.13∝ or 0.15∝) processors at 1GHz, 533MHz, or 300MHz use 133MHz, 133MHz, or 66MHz FSB (front side bus) respectively, with 128kB Level 1 cache and 64kB Level 2 cache. The ESP processors require a heatsink, but no fan.

NOTE

A CPU fan connector is provided for your convenience to

 

accommodate any special requirements. See Table 3-28.

 

 

Memory

The LittleBoard 550 memory consists of the following elements:

SDRAM

Flash memory

Serial EEPROM (SEEP)

SDRAM Memory (DIMM1)

The LittleBoard 550 supports a single standard 168-pin DIMM slot.

DIMM slot can support up to 2GB of memory

Supports PC 133 (133MHz, 7.5ns) and PC 100 (100MHz, 10ns)

+3.3V SDRAM

NOTE

Ampro recommends using only PC 133 (133MHz), 3.3V, 7.5ns, 168-

 

pin, SDRAM DIMM, but PC 100 (100MHz, 10ns) will function. PC

 

133 provides the best performance for the Eden processors.

 

 

Flash Memory (U17)

There is an 8-bit wide, 512kB flash device used for system BIOS that is connected to the Southbridge, VT82C686B, through an ISA bus transceiver. The BIOS is re-programmable and the supported features are detailed in Chapter 4, BIOS Setup.

Serial EEPROM (SEEP)

The 2-wire Serial EEPROM (SEEP) contains 4k-bits and at least 512-bit area is reserved for the user. The SEEP is used to store system parameters for battery-free boot capability when there is no battery present. The SEEP uses the SMBus as its 2-wire interface.

22

Reference Manual

LittleBoard 550

Image 28
Contents LittleBoard Single Board Computer Reference Manual Audience Assumptions Contents Appendix a List of Tables Table A-1 Purpose of this Manual SpecificationsReference Material LittleBoard 550 Support Products Related Ampro ProductsOther LittleBoard Products Other Ampro Products Chapter Product Overview EBX ArchitectureProduct Description Stacking PC/104 Modules with the LittleBoardBoard Features Chapter Chapter Block Diagram ATAMajor Integrated Circuits ICs Chip Type Mfg Model Description FunctionVIA CPUConnector Definitions Jack # Signal DescriptionAdditional Components DIMM1Northb Jumper # Installed Removed/Installed DefaultIndicator Definition Jumper DefinitionsThb Physical Specifications SpecificationsDimension Mechanical Specifications LittleBoard 550 Dimensions Top view, #1115 705 415 730 200 050 350 800 600 385 345 Environmental Specifications Power SpecificationsThermal/Cooling Requirements Reference Manual LittleBoard Overview USBCPU U1 MemorySdram Memory DIMM1 Flash Memory U17Interrupt Channel Assignments Memory MapAddress Map Base Address FunctionAddress hex Subsystem VGAPin # Signal Input Description Output PC/104-Plus Interface J21IDSEL0 REQ0GNT1 CLK2REQ2 CLK0Intd IntaIDSEL1 REQ1GNT2 CLK3IDSEL2 IDSEL3GNT0 CLK1Pin # Signal Description J1 Row a PC/104 Interface J1A,B,C,DPin # Signal Descriptions J1 Row B DACK3 DRQ3DACK1 DRQ1Pin # Signal Descriptions J1 Row C Pin # Signal Descriptions J1 Row DIRQ15 IRQ14DACK0 DRQ0Pin # Signal Description IDE Interface J12, J17Pdreq PdiowPdior PdiordySDD8 SDD6SDD9 SDD5SDA1 SDA0SDA2 SDCS1#PDCE1 CompactFlash Adapter J23VCC PDCE2 PdrstFloppy Drive Interface J14 Pin # Signal In/Out Description Parallel Port Interface J15Serial Interfaces J11, J13 RS485 Serial Port ImplementationDCD1 DSR1RXD1 RTS1CTS2 DTR2DCD3 DSR3DCD4 DSR4RXD4 RTS4Utility Interfaces Utility 1 Interface J16Mouse Interface Utility 2 Interface J24System Management Bus SMBus Component Address Binary USB Signals USB0 and USB1Sdram Eprom Susc PwrbtBatlow MdataUSB Signals USB2 and USB3 Utility 3 Interface J18Ethernet Interfaces J7, J32 TX+Audio Interface J28 Videol VideogndVideor CDLVideo Interfaces J3, J4, J5, J31 CRT InterfaceLCD Interface Enavdd Pin # Signal Description Line Channel Lvds InterfaceTemperature Monitoring Oops! Jumper Bios RecoveryMiscellaneous Real Time Clock RTCWatchdog Timer Hot Cable JumperPower Interface J10 Power MonitorCPU Fan TAGReference Manual LittleBoard Accessing Bios Setup VGA Display IntroductionAccessing Bios Setup Serial Console Bios Setup Menu Item/TopicBios Menus Bios Setup Opening ScreenBios Configuration Screen Drive Configurations and Boot OptionsDate & Time Drive Assignment# of Floppy Drives Bios Settings Boot Order Drive and Boot OptionsUser Interface Options Keyboard and Mouse ConfigurationUser Interface Memory Control Options MemoryPower Management Power Management and Advanced User OptionsAdvanced features On-Board Serial Ports On-Board LPT Port On-Board Controllers Video, Flat Panel, and Audio OptionsOn-Board Video PCI, Plug n Play, and Interrupt Assignments Chapter Bios Setup Chapter Bios Setup Chapter Bios Setup Splash Screen Image Requirements Splash Screen CustomizationConverting 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 Configuration PXE Boot Agent Setup ScreenTCP/IP Configuration NetWare Configuration RPL ConfigurationCD-ROM CRTDocumentation and Support Software Doc & SW CD-ROM PostSupported features WDTReference Manual LittleBoard