COM3/4-LPT2
MSMR104, MSMX104
MICROSPACE PC/104
Description
The MICROSPACE module MSMR104 is based on SMCs Fast Serial Port Super I/O controller FDC 37C664. The board integrates
two serial interfaces and one bi-directional parallel interface.
The serial controller is configured as COM3 and COM4 with selectable interrupts. The interrupts are: IRQ 3, 4, 10, 11.
COM3 and COM4 are individually selectable by jumpers as RS232C or RS485. The LPT2 parallel interface can be used in a bi-
directional way. For most operating systems, a wide range of drivers is available.
Features
COM3 and COM4: RS232C and/or RS485
LPT2
Selectable Interrupts
Single +5V supply
Operating Temperature: -25 to 75ºC
Ordering Information
Item codes Part # Description
MSMR104 801040 2-COM Interface RS232/RS485 (COM3+COM4)
MSMX104 806011 4-COM Interface (RS232/RS422/RS485 selectable)
Manufacturer USA Distributor & Support Center Representative
DIGITAL-LOGIC AG Advanced Digital Logic, Inc.
Nordstrasse 4/F 4411 Morena Blvd., Suite 230
CH-4708 Luterbach San Diego, CA 92117-4328
Switzerland P: 858.490.0597 F: 858.490.0599
Email: sales@adlogic-pc104.com
http://www.adlogic-pc104.com
Technical Specifications
msmr_x104 rev1 1/01
Features Functions Remarks
Controller SMC37C664
Clock Frequency 24MHz
Serial Controller 16C550 compatible
FIFO 16 Bytes
Baud Rates 300 Baud - 115kBaud
Interrupt 3, 4, 10, 11
Interface COM3 RS232C / V24 (default) 10 pins
RS485 (jumper selectable) 10 pins
Interface COM4 RS232C / V24 (default) 10 pins
RS485 (jumper selectable) 10 pins
Parallel Controller
LPT2 Bi-directional
Interrupts 5 or 10
General
Power Supply 5V, 150mA
Bus PC/104 104 stack through pins
Size 3.6 x 3.8 x 0.8 (90 x 96 x 20 mm)
Operating Temp -25 to +75ºC
Storage Temp -65 to +125ºC
MSMR104, MSMX104