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Little Board™/486e Computer
P/N 5001561 Revision A
4757 Hellyer Avenue, San Jose, CA 95138
Phone: 408 360-0200, FAX: 408 360-0222, Web: www.ampro.com
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TRADEMARKS The Ampro logo is a registered trademark, and Ampro, CoreModule, Little Board, StackPlane, MiniModule, and MiniBackplane are trademarks of Ampro Computers, Inc. All other marks are the property of their respective companies. NOTICE No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise,
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Table of Contents Preface Introduction ........................................................................................................................................ vii Technical Support............................................................................................................................... vii Introduction General Description...........................................................................................................................1–1 Features ...
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I/O Addresses .............................................................................................................................2–11 Interrupt Assignments ..............................................................................................................2–12 ROM-BIOS Installation of the Serial Ports...............................................................................2–13 Serial Port Connectors (J11, J13).............................................................
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Utility Connector (J16) ....................................................................................................................2–55 PC Speaker.................................................................................................................................2–57 LED Connection.........................................................................................................................2–57 Push Button Reset Connection...........................................
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Onboard Peripherals....................................................................................................................3–2 Support Software .........................................................................................................................3–6 Mechanical and Environmental Specifications ...........................................................................3–7 Index vi
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Preface Introduction This manual is for designers of systems based on the Ampro Little Board™/486e single board system. This manual contains information that permits users to create an embedded system customized to specific requirements. Information includes: ! Hardware requirements ! Programming instructions ! Details for integrating it with other equipment Technical Support The Ampro Virtual Technician is available 24 hours a day at http://www.ampro.com, the Ampro Computers, Inc World Wide Web
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Chapter 1 Introduction General Description The Little Board™/486e CPU is an exceptionally high integration, high performance, 486DX-based PC/AT compatible system in the EBX form factor. This rugged and high quality single-board system contains all the component subsystems of a PC/AT motherboard plus the equivalent of six PC/AT expansion boards. Key functions included on the Little Board/486e CPU are: ! CPU ! RAM ! Embedded-PC BIOS ! Keyboard and speaker interfaces ! Four buffered serial ports !
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Little Board™/486e Technical Manual VL-Bus Flat Panel/CRT Display Controller A powerful and flexible local bus video display controller interfaces with both flat panels and CRTs, and offers full software compatibility with all popular PC video standards (VGA, Super VGA, and VESA). All standard resolutions up to 1280 x 1024 pixels and 16 million colors (True Color, in 640 x 480 VGA) are supported. Refer to Tables 3-1 and 3-2 for video specifications. 2M byte of video memory is standard. The displ
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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
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Little Board™/486e Technical Manual Ethernet LAN Interface The Ethernet LAN interface uses Carrier Sense, Multiple Access/Collision Detect (CSMA/CD) for node access and operates at a 10M-bits/second data rate. The Ethernet interface has the following features: ! Contains the logic necessary to send and receive data packets ! Controls CSMA/CD network access technology ! Meets IEEE 802.3 (ANSI 8802-3) Ethernet standards ! Supports the Ethernet twisted-pair standard (10BaseT) Because Ethernet is pr
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Introduction Modular PC/104 Expansion Bus The Little Board/486e CPU provides a PC/104-compatible expansion bus for additional system functions. This bus is a compact version of the standard PC ISA bus and offers compact, self- stacking, modular expandability. The growing list of PC/104 modules available from Ampro and other PC/104 vendors includes such functions as: ! Communications interfaces ! Video frame grabbers ! Field bus interfaces ! Digital signal processors (DSPs) ! Data acquisition and
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Little Board™/486e Technical Manual HALT Testing The Little Board/486e CPU was subjected to Highly Accelerated Life Testing (HALT) as a part of its Engineering Qualification. An independent firm using a standardized procedure performed testing. HALT testing is used during the development of a product to identify its temperature and vibration Operating Limits and Destruct Limits. The stresses applied during this testing greatly exceed those expected during normal operation. The intent of the test
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Introduction Software The Little Board/486e CPU can use most commercial and public-domain software developed for the IBM PC and PC/AT. Software development tools such as editors, compilers, and debuggers can be used to develop application code. System requirements can be quickly tailored to your needs using these standard tools with the utilities and drivers supplied with each Little Board/486e CPU. The board’s SETUP function can be used for all system configuration tasks. SETUP can be invoked u
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Little Board™/486e Technical Manual Little Board Development Platform Whatever your Little Board application, there is always a need for an engineering development cycle. To help developers quickly assemble an embedded system, Ampro’s Little Board Development Platform provides developers with tools to manage development and assembly for embedded system components such as: ! Power supplies ! Floppy disk drive ! Hard disk drive ! Speaker ! I/O connectors ! Two-slot PC backplanes The Development Pl
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Chapter 2 2 2 2 Product Reference Overview This chapter contains the technical information required to install and configure the Little Board™/486e CPU. The information includes: ! Power Connector ! DRAM memory ! Serial Ports ! Bi-directional parallel port ! Floppy disk interface ! IDE hard disk interface (Compact Flash) ! Video Controller ! 32-pin byte-wide socket ! Ethernet local area network interface ! Utility connector (keyboard, PC speaker, reset button, external battery, PS/2 mouse) ! Wat
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Little Board™/486e Technical Manual Table 2–1. Connector Usage Summary Connector Function Size Key Pin P1A/B PC/104 Expansion Bus 64-Pin B10 P2C/D PC/104 Expansion Bus 40-pin C19 J2 Compact Flash Card 50-pin J3 Flat Panel Video 50-pin 35 J4 LCD Bias Supply Connector 12-pin 3, 10 J5 CRT Video 10-pin None J6 RS-485 2-pin None J7 Ethernet Twisted Pair RJ45 None J10 Power, +5V and +12V 4-pin None Molex J11 Serial 1 and Serial 2 20-pin 20 J12 IDE Hard Disk 40-pin 20 J13 Serial 3 and Serial 4 20-pin 2
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Product Reference J16 Utility/Keyboard J12 IDE Hard Disk W5 RS-232/RS-485 (RS-232) J6 RS-485 J14 Floppy W6 RS-485 Termination (No Enable) J10 Power J13 Serial 3 & 4 J15 Parallel Port J11 Serial 1 & 2 W3 Compact Flash J7 Ethernet Master/Slave W13 Ethernet SEEP (Enable) W2 Byte Wide Configuration (Flash ROM) J2 Compact Flash Card W9 Serial 4 IRQ (IRQ 11) W7 Serial 3/4 IRQ Share (No Share) W8 Serial 3 IRQ (IRQ 10) W11/W12 Video Controller (Enable) W1 Memory SWAP (Enable) P2 W10 LCD Power (5V) PC/10
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Little Board™/486e Technical Manual Jumper Configuration Options Ampro installs optional jumpers in default positions so that the Little Board/486e CPU requires no special jumpering for immediate operation. Jumper-pin arrays are designated W1, W2, and so forth. Jumper pins have a 2mm pitch. A square solder pad identifies pin 1 of each jumper array. Table 2–2 provides a summary of jumper use. In the Default column, two numbers separated by a slash (for example, 1/2) means that pins 1 and 2 are sh
