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SECTION 1 - INTRODUCTION
The MCSI IRV-686 Pentium/MMX 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 which 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 4 EIDE drives, a high performance multi-I/O controller, a WatchDog timer, a 1K-bit
E
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Key memory for user data, and user application addresses in the BIOS extension region of C800-
EFFF. The board uses the Intel 430TX PCI Chipset which is PCI 2.1 compliant, and the S3 Virge/DX
3D VGA controller. The multi-I/O controller includes: dual 16C550 UARTs, a floppy port, and a
SPP/EPP/ECP multi-mode bi-directional parallel port. The optional PROMDISK-Chip Disk
Emulator comes complete with ROM-DOS version 6.22, making it ideal for embedded diskless
applications. The 1K-bit E
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Key memory is a non-volatile memory is useful for storing user data, such
as: critical system parameters, terminal address, etc. The WatchDog timer is ideal for controlling
critical processes where unattended operation is essential.
The IRV-686 SBC is fully compatible with the IBM PC/AT ISA Bus and the PCI Bus version 2.1 which
means virtually all the software written for the IBM PC/AT will run on the IRV-686 SBC.
FEATURES
A complete list of features is listed below:
• IBM PC/AT Compatible Plug-in Computer
• Supports 233MHz Pentium/MMX, AMD K6-2 and Cyrix 6x86 type CPUs up to 333MHz
• Includes Zero Insertion CPU Socket
• Intel 430TX Chip Set
• AWARD Plug-n-Play Flash BIOS
• Passive Backplane Architecture
• Includes 32 bit PCI 2.1 Compatible Bus
• S3 Virge/DX 3D VGA Controller and 2MB EDO Video Ram
• 256M-Byte High Performance SDRAM System Memory (2-168 pin DIMMs)
• 512KB Pipelined Burst Mode Secondary Cache
• Dual Floppy Disk Port Supports Two 3.5" or 5.25" Drives up to 2.88M-bytes
• PCI Extended EIDE Hard Disk Port supports up to Four Drives
• PS2/AT Compatible Keyboard Port
• PROMDISK-Chip Socket Supports up to 32MB PROMDISK-Chip Disk Emulator
• PS2 Compatible Mouse Port
• Two High Speed 16C550 Compatible RS-232 Serial Ports
• Multimode Bi-directional Parallel Printer Port
• Dual Universal Serial Bus Ports for future expansion
• Infrared Data Access Port for future applications
• Clock/Calendar with Battery Back-up
• Low Power CMOS Design
• Full Size AT Plug-in Multilayer Board for Low EMI and High Reliability
• WatchDog Timer and Power Monitor
• On-board Mini Speaker
• Optional External Reset
• Optional Datalight ROM-DOS 6.22 Operating System
