Ampro Corporation 486E manual Address Function

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Product Reference

Table 2–3. Little Board/486e I/O Map

I/O Address	Function

3F8h - 3FFh	Primary serial port
3F2h - 3F7h	Floppy disk controller ports
	3F2: FDC Digital output register
	3F4: FDC Main status register
	3F5: FDC Data register
	3F7: FDC Control register
3F0h - 3F1h	Ampro reserved
3E8h - 3EFh	Third serial port
3D0h - 3D7h, 3DA	Video controller
3C0h - 3CFh	Video controller
3B4, 3B5, 3BA	Video controller (MDA Emulation)
378h - 37Fh	Primary parallel printer port
320h - 32Fh	Ethernet interface (default)
2F8h - 2FFh	Secondary serial port
2F0h - 2F3h	Ampro reserved
2E8h - 2EFh	Fourth serial port
278h - 27Fh	Secondary parallel printer port
1F8h - 1FFh	Ampro reserved
1F0h - 1F7h	IDE hard disk interface

102Video Controller (Global Enable)

0F0h - 0FFh Reserved

0C0h	- 0DFh	DMA controller 2 (8237 equivalent)
0A0h - 0A1h		Interrupt controller 2 (8359 equivalent)
092h		Fast A20 gate and CPU reset
080h	- 08Fh	DMA page registers (74LS61 equivalent)
070h	- 071h	Real-time clock and NMI mask
060h, 064h		Keyboard controller (8042 equivalent)
040h	- 043h	Programmable timer (8254 equivalent)
020h	- 021h	Interrupt controller 1 (8359 equivalent)
000h	- 00Fh	DMA controller 1 (8237 equivalent)
E0E0h	- E0EFh	Ethernet disable address (full 16-bit address)

Note

All I/O ports below 100h are reserved for internal system functions and should not be accessed.

2–5

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Contents Little Board/486e Computer Revision Reason for Change Date Table of Contents Page Technical Specifications Index Technical Support IntroductionThis page left intentionally blank Viii Chapter FeaturesGeneral Description CPU/MotherboardVL-Bus Flat Panel/CRT Display Controller Enhanced Embedded-PC BiosEnhanced Parallel Port Serial PortsFloppy Interface IDE InterfaceByte-Wide Socket and Solid State Disk SSD Ethernet LAN InterfaceModular PC/104 Expansion Bus Enhanced ReliabilityHalt Testing Software Little Board Development Platform Overview Interface Connector SummaryConnectors Connector Function Size Key PinConnector and Jumper Locations Jumper Configuration Options Jumper Group Function DefaultSystem I/O Map Address Function DC Power Connector Type Mating ConnectorPin Connection Power Requirements Backup BatteryCooling Requirements Powerfail Monitor System Memory Map DramMemory Address Function Expanded Memory and Extended MemoryRS-232C Serial Ports Serial Ports J11, J13RS-485 Serial Port AddressesIRQ11 IRQ7 Interrupt AssignmentsSerial Port Connectors J11, J13 ROM-BIOS Installation of the Serial PortsName Pin Ports Pin Signal Function In/Out DB25Pin Signal Name Configuring Serial 2 for RS-485 J6, W5, W6Pin RJ11 Signal Standard Wire Color RS-485 Twisted-Pair Cabling Using RJ11 ConnectorsInterconnection Scheme Examples Using the RS-485 InterfaceSerial Console Hex CommandSerial Handshake COM Port TableUsing a Serial Modem Serial Booting and Serial ProgrammingBi-Directional Parallel Port Register Name Address Primary SecondarySelection Address Interrupts ROM-BIOS Installation of Parallel Ports Signal Type Number of Lines Function Output DriveStandard and General Purpose I/O Operation Parallel Port Interrupt Parallel Port Interrupt Enable Register Bit Signal Name In/Out Active J15Or Function High/Low Pin J15 Pin Signal Function In/Out DB25 Name Parallel Port Connector J15Register Bit Definitions Signal Name Full Name DescriptionFloppy Disk Interface Floppy Drive ConsiderationsCapacity Drive Size Tracks Data Rate Floppy Interface Configuration Floppy Interface Connector J14Pin Signal Name Function In/Out IDE Hard Disk Interface IDE Connector J1225. IDE Drive Interface Connector J12 IDE Interface Configuration Compact Flash Solid-State Disk Master/Slave SettingEnabling the Drive Solid-State Disk PreparationConnecting a CRT J5 Name Connector Pins/Type DescriptionFlat Panel/CRT Video Controller Part Description Mating Connector J5 Pin Signal Name DB-15 DB-9W10 +5V Connecting a Flat Panel J3FLM Pin Signal Description NameAdvanced Power Management Power SequencingPgmebios VIDEO=filename Bios Support of Non-Standard PanelsSelecting Vee Polarity LCD Bias Supply OptionJ4 Pin J3 Pin Description Ra = 270 Rb = Vee max Vee min / 1.5 Attaching an External Contrast ControlExample Network Terms Ethernet Network InterfaceQNX Installing an Ethernet Boot PromInstalling a Boot Prom Twisted-Pair InstallationsInstalling a Boot Prom in Byte-Wide Socket S0 Twisted Pair Interface J7Using Network Operating Systems NOS Network OS Drivers Controlling the Ethernet LAN Interface DirectlyProgram Name Vendor Function Driver Name 00 40 Manufacturer’s Ethernet IDByte-Wide Socket S0 SSD Device Size Package Generic Type Pins Part NumberROM-BIOS Extensions Addressing the Byte-wide SocketWindow Address Accessing the Byte-Wide Socket Performance IssuesSolid State Disk SSD Drives Device 64KB Segment Address Size Segments Upper Nibble of BH Typical Devices Pins Jumper Diagram Byte-Wide Socket SignalsW14 Pin Signal Name Description Jumpering the Byte-Wide SocketUsing EPROMs Flash Eprom Typical Devices Pins Jumper DiagramFlash Eprom Programming Non-volatile RAM Using SRAMsUtility Connector J16 Exsmi Pin Signal Name FunctionExternal Battery Connections Push Button Reset ConnectionPC Speaker LED ConnectionBattery-Backed Clock Watchdog Timer Jumper W4WDT Response AL,61H AL,NOT 08H OUT 61H,AL Page AT Expansion Bus Onboard MiniModule Expansion Using Standard PC and AT Bus CardsBus Termination Bus Expansion GuidelinesExpansion Bus Connector Pinouts PU/PD/S Pin Signal Function In/Out Current47. AT Expansion Bus Connector, B1-B32 P1 48. AT Expansion Bus Connector, C0-C19 P2 PU/PD/S Interrupt Function Interrupt and DMA Channel UsageChannel Function Serial Parallel FloppyEthernet Video Setup Overview Menu Name Functions Standard CMOS/EEPROM Setup Setup Page 1-Standard CMOS/EEPROM SetupDate and Time Drive Parameter SetupFloppy Drives IDE Hard Disk DrivesPage Video Error HaltDram Memory System PostExtended Bios Setup Page 2-Options/Peripheral ConfigurationParallel Port Serial PortPort Address Selection Address InterruptIDE Interface Enable Floppy Interface EnableHot Key Setup Enable Selection AddressBlank Post Test Video StateSerial Boot Loader Enable Byte-Wide Socket ConfigurationWatchdog Timer Configuration Local Bus Video DisplayFlat Panel Display Type Installing a Modified Bios to Support a New PanelExtended Serial Console Configuration Setup Page 3-Serial Console ConfigurationPage Switch Function Creating Configuration Files with SETUP.COMDIR LPT1 Operation with DOSUtility Software Overview Embedded-PC System Enhancements Little Board/486e CPU SpecificationsOnboard 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