Serial Ports, Enhanced Parallel Port | Ampro Corporation 486E

Introduction

Serial Ports

Four PC-compatible RS-232C serial ports are standard. Serial Port features include:

!16C550-type UARTs

!UARTs are equipped with 16-byte FIFO

!Support for 115K baud rates

!Onboard voltage converters provide the RS-232C voltage levels from the single 5 volt supply

!COM2 can be jumper configured to conform with RS-485

Enhanced Parallel Port

One PC parallel port is standard. It can be used for the following applications:

!Printer port

!Channel for access to parallel port interfaced peripherals

!Digital control (output) and sensing (input) lines

!EEP, ECP, SPP, and BPP Selectable

The parallel port can be:

!Set up as the primary or secondary parallel port using the BIOS SETUP function

!Disabled to free its PC resources for other peripherals

Floppy Interface

An onboard floppy disk interface provides access to standard floppy drives. The interface supports up to two 5.25 inch or 3.5 inch floppy drives in any combination.

IDE Interface

An onboard IDE interface provides high-speed hard disk and CD-ROM drive access. The interface supports up to two drives. The BIOS supports hard drives up to 8.4G bytes through Logical Block Addressing (LBA).

Compact Flash Disk

The Compact Flash interface allows you to substitute solid-state Flash memory for a conventional rotating-media drive. Any DOS-based application, including the operating system, utilities, drivers, and application programs, can easily be run from the Compact Flash device without modification

The Compact Flash disk is a solid-state disk system that emulates an IDE drive. It uses standard Compact Flash disk media, similar to a PCMCIA memory card, but smaller. Insert the Compact Flash disk media in the on-board Compact Flash socket, and use it in much the same way you would use a removable-media hard drive. The Compact Flash drive is architecturally equivalent to an IDE drive in your system. When installed, it becomes one of the two IDE drives supported by the primary EIDE disk controller. It can be configured as either an IDE master or slave drive.

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Ampro Corporation 486E manual Serial Ports, Enhanced Parallel Port, Floppy Interface, IDE Interface, Compact Flash Disk

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 System I/O Map Jumper Configuration OptionsJumper Group Function Default Address Function Pin Connection DC PowerConnector Type Mating Connector Cooling Requirements Power RequirementsBackup Battery 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 Selection Address Interrupts Bi-Directional Parallel PortRegister Name Address Primary Secondary Standard and General Purpose I/O Operation ROM-BIOS Installation of Parallel PortsSignal Type Number of Lines Function Output Drive Parallel Port Interrupt Or Function High/Low Pin Parallel Port Interrupt EnableRegister Bit Signal Name In/Out Active J15 J15 Pin Signal Function In/Out DB25 Name Parallel Port Connector J15 Register Bit Definitions Signal Name Full Name Description Capacity Drive Size Tracks Data Rate Floppy Disk InterfaceFloppy Drive Considerations Pin Signal Name Function In/Out Floppy Interface ConfigurationFloppy Interface Connector J14 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 Flat Panel/CRT Video Controller Connecting a CRT J5Name Connector Pins/Type Description 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 J4 Pin J3 Pin Description Selecting Vee PolarityLCD Bias Supply Option 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 Program Name Vendor Function Driver Name Network OS DriversControlling the Ethernet LAN Interface Directly 00 40 Manufacturer’s Ethernet ID Byte-Wide Socket S0 SSD Device Size Package Generic Type Pins Part Number Window Address ROM-BIOS ExtensionsAddressing the Byte-wide Socket Solid State Disk SSD Drives Accessing the Byte-Wide SocketPerformance Issues 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 Programming Using EPROMsFlash Eprom Typical Devices Pins Jumper Diagram 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 WDT Response Watchdog TimerJumper W4 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 Ethernet Video Channel FunctionSerial Parallel Floppy 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