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S

ECTION 

1 - I

NTRODUCTION

 

 
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 

EIDE drives, a high performance multi-I/O controller, a WatchDog timer, a 1K-bit E

2

Key memory for 

user data, and a 10/100Mbps Ethernet Port.  The board uses the Intel 82443BX advanced chipset, and 
the S3 Trio 3D/2X Graphics 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

2

Key memory is a non-volatile memory 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-3702 SBC is fully compatible with the 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-3702 SBC. 
 
 

F

EATURES

 

 A complete list of features is listed below: 
 

 IBM PC/AT Compatible Plug-in Computer 

 Supports the Intel Celeron Processor up to 500MHz 

 Includes Zero Insertion CPU Socket 370 

 Intel 82443BX ChipSet 

 Includes 32 bit PCI  2.1 Compatible Bus 

 AMI Plug-n-Play Flash BIOS  

 Passive Backplane Architecture  

 S3 Trio 3D AGP/VGA Controller and 4MB Video RAM 

 10/100Mbps Auto-Sensing Ethernet Port Supports IEEE 802.3u 100BASE-TX Standard 

 1G-Byte High Performance SDRAM System Memory (4-168 pin DIMMs) 

 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  

 
 

Summary of Contents for IRV-3702

Page 1: ...00 IRV 3702 All In One Single Board Computers For Industrial Embedded Systems Applications MICRO COMPUTER SPECIALISTS INC T h e E m b e d d e d P C S p e c i a l i s t s 1070 Joshua Way Vista CA 92083...

Page 2: ...damage including but not limited to special incidental consequential or other damages occasioned by the use of this product s In the event of defect the buyer s sole recourse is to receive a refund o...

Page 3: ...he IBM PC compatible hardware and software architecture refer to any of the many books available on the subject A few suggestions are listed below Advanced MS DOS Programming Microsoft Press Programme...

Page 4: ......

Page 5: ...______________________ 7 Section 4 Using the PROMDISK Chip Disk Emulator ________________________________________ 8 Using ROM DOS and Other Disk Operating Systems 8 PROMDISK Low Level Format 8 Section...

Page 6: ......

Page 7: ...ompatible with the 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 3702 SBC FEATURES A complete list of features is listed belo...

Page 8: ...support up to 1G bytes of synchronous dynamic random access memory SDRAM organized as four banks of 32Mx72 including eight parity bits The memory is configured using four dual in line memory module s...

Page 9: ...ctor except as noted above TIMERS The IRV 3702 SBC has the equivalence of an 82C54 Programmable Timer included in the System Controller chip The 82C54 is a three channel Programmable Counter Timer chi...

Page 10: ...fer to Appendix D for the reset switch connector location and pin assignments PRINTER PORT The IRV 3702 SBC contains a multimode parallel port that has the equivalence of an IBM PC AT Parallel Printer...

Page 11: ...og Timer must be triggered by reading I O port 443H within the time out period otherwise the WatchDog Timer will force a hardware reset or activate the IOCHCK line generating a non maskable interrupt...

Page 12: ...connector location and pin assignments IRDA INFRARED INTERFACE PORT The IRV 3702 SBC contains a built in IrDA infrared interface port which supports Serial Infrared SIR or Amplitude Shift Keyed IR ASK...

Page 13: ...t saving the changes The PgUp and PgDn keys are used to scroll through the selections for a given setting PgUp is also used to decrease the setting and PgDn to increase the setting In addition you may...

Page 14: ...ystem version or type you should simply use the equivalent DOS SYS command to transfer the operating system PROMDISK LOW LEVEL FORMAT The Flash memory contained on the PROMDISK Chip board was initiali...

Page 15: ...ving the CPU be sure to first touch a grounded surface to discharge any static electricity from your body Use the following procedure to install the CPU 1 Open the ZIF socket by lifting the release ar...

Page 16: ...installation the following steps should be followed 1 Set the configuration jumpers in accordance with Appendix E 2 Install the IRV 3702 SBC into the CPU slot in a passive backplane 3 Connect the app...

Page 17: ...r CN7 I O Ports 2 RS 232 Serial Ports CN12 at rear connector and CN11 header 1 Parallel Printer Port at connector CN4 1 PS2 Keyboard Port at header CN8 and at rear PS2 type connector CN18 1 On board S...

Page 18: ...PENDIX B BOARD OUTLINE 1 CN1 CN2 CN4 CN11 JP15 JP12 Denotes pin 1 CN10 CN18 J1 CN3 CN7 CN12 CN8 CN17 JP7 JP3 CN13 JP14 BIOS PROMDISK Chip U31 DIMM1 DIMM2 DIMM3 DIMM4 CN15 CN14 CN9 JP4 JP8 JP5 JP11 CN6...

Page 19: ...r the IRV 3702 SBC I O addresses are fully PC AT compatible unless otherwise specified IRV 3702 SBC I O Map Address Function 000H 01FH DMA Controller 1 020H 021H Interrupt Controller 1 022H 023H Confi...

Page 20: ...ion 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 Disk Port Connector Pin S...

Page 21: ...IDEDACK 30 GND 31 IRQ14 32 Not Used 33 IDESA1 34 Not Used 35 IDESA0 36 IDESA2 37 HDCS0 38 HDCS1 39 IDEACT 40 GND CN4 Printer Interface Connector Pin Signal Pin Signal 1 STROBE 14 AUTOFD 2 PDAT0 15 ERR...

Page 22: ...SEND 2 5 TRANSMIT DATA 2 6 CLEAR TO SEND 2 7 DATA TERMINAL READY 2 8 RING INDICATOR 2 9 GND 10 N C J1 VGA Display Connector 15 pin Sub D Pin Signal Pin Signal 1 RED 2 GREEN 3 BLUE 4 N C 5 GND 6 GND 7...

Page 23: ...5 GND 2 DATA0 6 DATA1 3 DATA0 7 DATA1 4 GND 8 5VDC CN6 IrDA Infrared Port Connector Pin Signal 1 5VDC 2 FIR RX 3 IR RX 4 GND 5 IR TX 6 CIR RX CN13 CPU Fan Connector CN14 System Fan 1 Connector CN15 S...

Page 24: ...OFF 6 5X ON ON OFF OFF 7 0X ON OFF ON OFF 7 5X ON OFF OFF OFF 8 0X OFF ON ON OFF JP5 WatchDog Timer Control Jumper 2 3 Generates hardware RESET when time out occurs Default 1 2 Generates NMI IOCHRDY...

Page 25: ...19 JP4 Clear CMOS Setup Jumper OFF Normal Operation Default 3 4 Clear CMOS Setup JP7 PS 2 Mouse Jumper ON Enabled using IRQ12 OFF Disabled JP14 Manufacturing Test Jumper 1 2 Do Not Use 2 3 Do Not Use...

Page 26: ...A parity error was detected in the first 64K block of system memory 3 Base 64KB Memory Failure A memory failure occurred within the first 64KB of memory 4 Timer Not Operational Timer 1 has failed to...

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