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User's Manual
for the
IRV-3702 Single Board Computer with AGP/VGA & Ethernet
MCSI PART NO. 89000 IRV-3702
All-In-One Single Board Computers
For Industrial/Embedded Systems Applications
MICRO COMPUTER SPECIALISTS, INC.
"The Embedded PC Specialists"
1070 Joshua Way
Vista, CA 92083
U.S.A.
Voice (760) 598-2177 - Fax (760) 598-2450
email: mcsi@mcsi1.com WebSite: http://www.mcsi1.com
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Revised January 14, 2000 Revision 1.1 Changes are made periodically to the information contained herein; these changes will be incorporated into new editions of this document. Requests for copies of this publication or the product(s) which it describes should be made to MCSI. While every effort has been made to insure that this document and its accompanying product(s) are free from defects, MCSI, its distributors, representatives, and employees shall not be responsible
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PREFACE This manual provides information about the MCSI IRV-3702 All-In-One Single Board Computer. This information is intended for users who must implement IBM PC/AT compatible computer solutions to a wide variety of applications that cannot be satisfied using conventional desktop computers. This manual assumes that the reader has a good understanding of MS-DOS and the standard IBM PC/AT compatible architecture. For more information on the IBM PC compatible hardware and software archi
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Table of Contents Section 1 - Introduction ___________________________________________________________________ 1 Features............................................................................................................................................................1 Section 2 - System Description _____________________________________________________________ 2 Processor...........................................................................................................
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SECTION 1 - INTRODUCTION The MCSI IRV-3702 Celeron All-In-One Single Board Computer (SBC) contains all the basic elements found in a high-performance IBM PC/AT compatible desktop computer system plus some unique features that make it ideally suited for industrial applications. The most outstanding features include: An optional 32MB PROMDISK-Chip Disk Emulator, dual PCI EIDE hard disk ports to support four 2 EIDE drives, a high performance multi-I/O controller, a WatchDog timer, a 1K-b
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SECTION 2 - SYSTEM DESCRIPTION The following sections describe the major system features of the IRV-3702 All-In-One Single Board Computer. PROCESSOR The IRV-3702 SBC supports the Intel Celeron processor up to 500MHz. The Celeron microprocessor includes MMX media enhancement technology, dynamic execution technology, a 32Kbyte (16Kbyte/16Kbyte) non-blocking, level-one cache that provides fast access to heavily used data, and 128Kbyte L2 cache. The on-board jumper selectable clock genera
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INTERRUPT CONTROLLER The IRV-3702 SBC has the equivalence of two 82C59A interrupt controllers included in the System Controller chip. The controllers accept requests from peripherals, resolve priorities on pending interrupts and interrupts in service, interrupt the CPU, and provide the vector address of the interrupt service routine. The two interrupt controllers are cascaded in a fashion compatible with the IBM PC/AT. The interrupt priority and assignments are shown below in descending
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pulse to port 61H to clear the interrupt for the next byte. Refer to Appendix D for the keyboard connector location and pin assignments. MOUSE PORT The IRV-3702 SBC contains an IBM PS2 compatible mouse port for interfacing to a generic serial mouse. The mouse port controller assembles the serial data from the mouse into bytes and interrupts the CPU via IRQ1 after each byte is ready to be read. The IRQ1 service routine reads port 60H to get the scan code and acknowledges by sending a posi
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EIDE HARD DISK PORT The IRV-3702 SBC contains two PCI Extended Integrated Drive Electronics (EIDE) Ports that directly interface up to four hard disk drives with embedded controllers. The EIDE Disk Port can be disabled using the CMOS Setup utility. Refer to Appendix D for the connector location and pin assignments. AGP/VGA DISPLAY PORT The IRV-3702 SBC includes a S3 Trio 3D AGP/VGA display controller that interfaces directly to the local on-board PCI bus. The display port is fully comp
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ETHERNET PORT The IRV-3702 SBC contains a Realtek RTL8139 highly integrated single-chip Fast Ethernet controller. The RTL8139 provides 10Mbps and 100Mbps auto-sensing operation, PCI bus master capability, and full compliance with IEEE 802.3u 100Base-TX specifications. The RTL8139 keeps network maintenance cost low and eliminates usage barriers. It also supports full-duplex operation, making possible 200Mbps of bandwidth. Refer to Appendix D for connector location and pin assignments. For
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SECTION 3 - SETUP The IRV-3702 SBC uses the latest AMI Plug-n-Play BIOS that contains an internal Setup Utility for configuring the system. The BIOS includes a graphical user interface, and a new system configuration utility, as well as all the features of the standard BIOS. The system configuration settings are stored in the on-board CMOS memory which is backed up by a Lithium battery. The Setup Utility can be invoked by first causing a cold boot (reset) or a warm boot (Cntrl Alt D
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SECTION 4 - USING THE PROMDISK-CHIP DISK EMULATOR The IRV-3702 SBC includes a 32-pin socket that supports the MCSI PROMDISK-Chip disk emulator which operates as a Read/Write fixed disk drive. The paragraphs that follow describe how to use the optional PROMDISK-Chip. USING ROM-DOS AND OTHER DISK OPERATING SYSTEMS The PROMDISK-Chip has been pre-configured at the factory with the latest version of the Datalight ROM-DOS disk operating system. In addition, a current copy of the operating sy
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SECTION 5 - INSTALLATION This section describes the procedures for installing the IRV-3702 All-In-One Single Board Computer into your system. The following is a list of typical peripherals required to build a minimum system: • Passive Backplane and Power Supply • IBM PC/AT Type Keyboard • Monitor • Floppy or Hard Disk with MS-DOS, ROM-DOS, or PROMDISK Disk Emulator INSTALLING THE DIMMS When installing or removing the SDRAM DIMMs, be sure to first touch a grounded surfa
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2. Push the PROMDISK-Chip into the socket carefully until it is fully seated. 3. Check to make sure the PROMDISK-Chip is installed securely, and there are no bent pins. To remove the PROMDISK-Chip, insert a small screwdriver between the PROMDISK-Chip and the socket and gently pry around the edge until the PROMDISK-Chip is released from the socket. COMPLETING THE INSTALLATION To complete the installation, the following steps should be followed: 1. Set the configuration jumpers in
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APPENDIX A - SPECIFICATIONS This appendix lists the specifications for the IRV-3702 All-In-One Single Board Computer. CPU: Supports: Intel Celeron processors up to 500MHz, 66MHz or 100MHz clock. Co-processor: Internal to the Celeron Chip Memory: System Memory Expandable to 1G-bytes. Supports: 8MB, 16MB, 32MB, 64MB, 128MB, or 256MB SDRAM DIMMs using four 168-pin DIMM sockets. 128K-bytes of L2 Cache Memory internal to CPU. BIOS: AMI Plug-n-Play BIOS Flash EPROM. Clock/Cal: PC/AT Com
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APPENDIX B - BOARD OUTLINE DIMM1 DIMM2 DIMM3 DIMM4 1 12 CN1 CN2 CN3 CN4 JP5 BIOS CN7 JP4 CN8 JP15 JP7 J1 JP3 CN9 CN10 JP8 JP11 JP12 CN11 CN13 U31 PROMDISK-Chip CN14 CN12 CN15 CN17 JP14 CN18 . Denotes pin 1 CN5 CN6
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APPENDIX C - MEMORY AND I/O MAPS The following is the memory map for the IRV-3702 SBC. The addresses are fully PC/AT compatible, unless otherwise specified. IRV-3702 SBC Memory Map Address Used For Size 00000H - 003FFH Interrupt Vectors 1.0K 00400H - 005FFH BIOS Values 0.5K 00600H - 9FFFFH User RAM (DOS) 638.5K A0000H - AFFFFH Reserved for VGA 64.0K B0000H - B7FFFH Video RAM (MDA)* 32.0K B8000H - BFFFFH Video RAM (CGA)* 32.0K C0000H - C
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APPENDIX D - CONNECTORS CN8 Keyboard Header/Connector Pin Signal 1 KBCLK 2 KBDATA 3 N/C 4 GND 5 +5VDC CN18 Keyboard/Mouse Connector (PS2 type) Pin Signal 1 KBDATA 2 MDATA 3 GND 4 +5VDC 5 KBCLOCK 6 MCLK CN7 Keylock Header/Connector Pin Signal Name Description 2 LED POWER (+) Connect to anode of power LED 4 N/C (Key) N/C (Key) 6 GND Connect to cathode of power LED 8 KB LOCK/ Connect to ground to inhibit keyboard 10 GND Ground CN2 Floppy D
