Ampro Corporation 486E specification

Product Reference

Table 2–37. Segment Addressing in Large Memory Devices

Device	64KB	Segment Address
Size	Segments	(Upper Nibble of BH)

128K	2	FIRST	BH=00h
		SECOND	BH=10h

256K	4	FIRST	BH=00h
		SECOND	BH=10h
		THIRD	BH=20h
		FOURTH	BH=30h

512K	8	FIRST	BH=00h
		SECOND	BH=10h
		THIRD	BH=20h
		FOURTH	BH=30h
		FIFTH	BH=40h
		SIXTH	BH=50h
		SEVENTH	BH=60h
		EIGHTH	BH=70h

1M	16	FIRST	BH=00h
		SECOND	BH=10h
		THIRD	BH=20h
		FOURTH	BH=30h
		FIFTH	BH=40h
		SIXTH	BH=50h
		SEVENTH	BH=60h
		EIGHTH	BH=70h
		NINTH	BH=80h
		TENTH	BH=90h
		ELEVENTH	BH=A0h
		TWELFTH	BH=B0h
		THIRTEENTH	BH=C0h
		FOURTEENTH	BH=D0h
		FIFTEENTH	BH=E0h
		SIXTEENTH	BH=F0h

Note: For a 128K byte window, use any of the odd numbered values (for instance, FIRST or THIRD)

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Image 67

Ampro Corporation 486E manual Device 64KB Segment Address Size Segments Upper Nibble of BH

Contents

Little Board/486e Computer Revision Reason for Change Date Table of Contents Page Technical Specifications Index Technical Support Introduction This page left intentionally blank Viii CPU/Motherboard FeaturesChapter General Description VL-Bus Flat Panel/CRT Display Controller Enhanced Embedded-PC Bios IDE Interface Serial PortsEnhanced Parallel Port Floppy Interface Byte-Wide Socket and Solid State Disk SSD Ethernet LAN Interface Modular PC/104 Expansion Bus Enhanced Reliability Halt Testing Software Little Board Development Platform Overview Interface Connector Summary Connectors Connector Function Size Key Pin Connector and Jumper Locations Jumper Group Function Default Jumper Configuration OptionsSystem I/O Map Address Function Connector Type Mating Connector DC PowerPin Connection Backup Battery Power RequirementsCooling Requirements Powerfail Monitor System Memory Map Dram Memory Address Function Expanded Memory and Extended Memory Addresses Serial Ports J11, J13RS-232C Serial Ports RS-485 Serial Port IRQ11 IRQ7 Interrupt Assignments Serial Port Connectors J11, J13 ROM-BIOS Installation of the Serial Ports Name Pin Ports Pin Signal Function In/Out DB25 Pin Signal Name Configuring Serial 2 for RS-485 J6, W5, W6 Pin RJ11 Signal Standard Wire Color RS-485 Twisted-Pair Cabling Using RJ11 Connectors Interconnection Scheme Examples Using the RS-485 Interface Serial Console Hex Command Serial Handshake COM Port Table Using a Serial Modem Serial Booting and Serial Programming Register Name Address Primary Secondary Bi-Directional Parallel PortSelection Address Interrupts Signal Type Number of Lines Function Output Drive ROM-BIOS Installation of Parallel PortsStandard and General Purpose I/O Operation Parallel Port Interrupt Register Bit Signal Name In/Out Active J15 Parallel Port Interrupt EnableOr Function High/Low Pin J15 Pin Signal Function In/Out DB25 Name Parallel Port Connector J15 Register Bit Definitions Signal Name Full Name Description Floppy Drive Considerations Floppy Disk InterfaceCapacity Drive Size Tracks Data Rate Floppy Interface Connector J14 Floppy Interface ConfigurationPin Signal Name Function In/Out IDE Hard Disk Interface IDE Connector J12 25. IDE Drive Interface Connector J12 IDE Interface Configuration Solid-State Disk Preparation Master/Slave SettingCompact Flash Solid-State Disk Enabling the Drive Name Connector Pins/Type Description Connecting a CRT J5Flat Panel/CRT Video Controller Part Description Mating Connector J5 Pin Signal Name DB-15 DB-9 W10 +5V Connecting a Flat Panel J3 FLM Pin Signal Description Name Advanced Power Management Power Sequencing Pgmebios VIDEO=filename Bios Support of Non-Standard Panels LCD Bias Supply Option Selecting Vee PolarityJ4 Pin J3 Pin Description Ra = 270 Rb = Vee max Vee min / 1.5 Attaching an External Contrast Control Example Network Terms Ethernet Network Interface QNX Installing an Ethernet Boot Prom Twisted Pair Interface J7 Twisted-Pair InstallationsInstalling a Boot Prom Installing a Boot Prom in Byte-Wide Socket S0 Using Network Operating Systems NOS Controlling the Ethernet LAN Interface Directly Network OS DriversProgram Name Vendor Function Driver Name 00 40 Manufacturer’s Ethernet ID Byte-Wide Socket S0 SSD Device Size Package Generic Type Pins Part Number Addressing the Byte-wide Socket ROM-BIOS ExtensionsWindow Address Performance Issues Accessing the Byte-Wide SocketSolid State Disk SSD Drives Device 64KB Segment Address Size Segments Upper Nibble of BH Jumpering the Byte-Wide Socket Byte-Wide Socket SignalsTypical Devices Pins Jumper Diagram W14 Pin Signal Name Description Flash Eprom Typical Devices Pins Jumper Diagram Using EPROMsFlash Eprom Programming Non-volatile RAM Using SRAMs Utility Connector J16 Exsmi Pin Signal Name Function LED Connection Push Button Reset ConnectionExternal Battery Connections PC Speaker Battery-Backed Clock Jumper W4 Watchdog TimerWDT Response AL,61H AL,NOT 08H OUT 61H,AL Page AT Expansion Bus Onboard MiniModule Expansion Using Standard PC and AT Bus Cards Bus Termination Bus Expansion Guidelines Expansion Bus Connector Pinouts PU/PD/S Pin Signal Function In/Out Current 47. AT Expansion Bus Connector, B1-B32 P1 48. AT Expansion Bus Connector, C0-C19 P2 PU/PD/S Interrupt Function Interrupt and DMA Channel Usage Serial Parallel Floppy Channel FunctionEthernet Video Setup Overview Menu Name Functions Standard CMOS/EEPROM Setup Setup Page 1-Standard CMOS/EEPROM Setup IDE Hard Disk Drives Drive Parameter SetupDate and Time Floppy DrivesPage System Post Error HaltVideo Dram Memory Extended Bios Setup Page 2-Options/Peripheral Configuration Selection Address Interrupt Serial PortParallel Port Port Address Selection Address Floppy Interface EnableIDE Interface Enable Hot Key Setup Enable Blank Post Test Video State Local Bus Video Display Byte-Wide Socket ConfigurationSerial Boot Loader Enable Watchdog Timer Configuration Flat Panel Display Type Installing a Modified Bios to Support a New Panel Extended Serial Console Configuration Setup Page 3-Serial Console ConfigurationPage Switch Function Creating Configuration Files with SETUP.COM DIR LPT1 Operation with DOS Utility Software Overview Embedded-PC System Enhancements Little Board/486e CPU Specifications Onboard Peripherals CRT Support for Standard Video Modes Vesa Font Pixels Clock Horiz Vert Mem Mode MHz KHz Support Software Mechanical and Environmental Specifications Mechanical Dimensions Technical Specifications Page Index Page POST, Setup Little Board/486e Technical Manual Index-4