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Page 21 of 26

Additional Information

Serial Port Programming

For more information about programming serial port UARTs, consult the following book:

Serial Communications Developer’s Guide

By Mark Nielson

ISBN: 0764545701

Interrupt Programming

For more information about interrupts and writing interrupt service routines, refer to the following

book:

Interrupt-Driven PC System Design

By Joseph McGivern

ISBN: 0929392507

Exar XR17D158 PCI Bus Octal UART

For detailed information about the Exar XR17D158, contact Exar at:

Web:

http://www.exar.com

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Summary of Contents for CM17320HR

Page 1: ...BDM 610020049 Rev E CM17320HR User s Manual Octal RS 232 422 485 PC 104 Plus Module I IS SO O9 90 00 01 1 a an nd d A AS S9 91 10 00 0 C Ce er rt ti if fi ie ed d...

Page 2: ...6 CM17320HR User s Manual RTD EMBEDDED TECHNOLOGIES INC 103 Innovation Blvd State College PA 16803 0906 Phone 1 814 234 8087 FAX 1 814 234 5218 E mail sales rtd com techsupport rtd com Web Site http w...

Page 3: ...They now use the designations printed on the board silk rather than the JPxx designation from the schematic Improved the Connector and Jumper Locations diagram Changed the name of the RS 422 485 Trans...

Page 4: ...Page 4 of 26 Consortium All other trademarks appearing in this document are the property of their respective owners...

Page 5: ...r Oscillator U3 11 Serial Port Connectors CN4 CN11 12 First serial port CN4 12 RS 232 Serial Port Mode Default 12 RS 422 485 Serial Port Mode 13 Second serial port CN5 14 Third serial port CN6 14 Four...

Page 6: ...terrupts 20 Additional Information 21 Serial Port Programming 21 Interrupt Programming 21 Exar XR17D158 PCI Bus Octal UART 21 CM17320HR Board Specifications 22 Physical Attributes 22 Operating Conditi...

Page 7: ...Up to 921 600 baud RS 422 485 prescaler 1 Up to 230 400 baud RS 232 prescaler 4 o User oscillator option Enables support for non standard baud rates up to 6 25 Mbps 3 3 V or 5 V Oscillators 50 MHz ma...

Page 8: ...Technical Support If you are having problems with your system please try the following troubleshooting steps Simplify the System Remove modules one at a time from your system to see if there is a spe...

Page 9: ...nput clock by either 1 or 4 Second is the Baud Rate Generator which further divides the frequency further to achieve the desired baud rate The Baud Rate Generator can be set to a value between 1 and 2...

Page 10: ...8 For example if one wants to use a baud rate of 115 2K Prescale divisor of 4 and receiver sampling of 16 the Baud Rate Generator divisor would be 14745600 4 115200 x 16 2 If the desired baud rate ca...

Page 11: ...illator and is configured with jumper JP27 Jumper JP2 selects either the 14 7456 MHz oscillator or the user oscillator All serial ports use the same oscillator U3 pin 1 is PC 104 Plus ISA Bus PC 104 P...

Page 12: ...iver enable or RS 485 with inverted RTS driver enable by the Mode A and B jumpers See Table 5 Jumper Settings for details RS 232 Serial Port Mode Default The full duplex RS 232 mode is the default set...

Page 13: ...D and CTS signals are provided on the utilityModule Termination is usually necessary on all RS 422 receivers and at the ends of the RS 485 bus If the termination resistor is required it can be enabled...

Page 14: ...ort CN8 Please refer to the previous section on the first COM port CN4 for the description Sixth serial port CN9 Please refer to the previous section on the first COM port CN4 for the description Seve...

Page 15: ...N5 C Second serial port CTS termination in RS 422 485 Open No termination default Closed 120 Ohm Termination Mode A Mode B Third serial port mode B A Mode Open Open RS 232 Default Open Close RS 485 RT...

Page 16: ...ault Closed 120 Ohm Termination CN10 C Seventh serial port CTS termination in RS 422 485 Open No termination default Closed 120 Ohm Termination Mode A Mode B Eighth serial port mode B A Mode Open Open...

Page 17: ...d etc 5 Line up the pins of the CM17320 s PC 104 and PC 104 Plus connectors with the corresponding bus connectors of the stack Make sure that both connectors are lined up 6 Apply pressure to both bus...

Page 18: ...lable as standard serial ports a k a COM ports to the operating system At that point application software should be able to access and control the serial ports Note When the CM17320HR is installed und...

Page 19: ...of the XR17D158 mimics the standard 16C550 UART register map However the XR17D158 contains some additional registers not found in a typical ISA based UART Additionally the base address of the CM17320H...

Page 20: ...is a PCI device it is capable of sharing interrupts with other PCI devices Interrupt sharing is a normal part of PCI operation and a required part of the PCI specification Note that any Interrupt Serv...

Page 21: ...Developer s Guide By Mark Nielson ISBN 0764545701 Interrupt Programming For more information about interrupts and writing interrupt service routines refer to the following book Interrupt Driven PC Sy...

Page 22: ...ize 3 6 L x 3 8 W x 0 6 H 90mm L x 96mm W x 15mm H Weight 0 24bs 0 10 Kg Power Consumption 2W 5 VDC Typical Operating Conditions Cooling Convection Operating temperature range 40 to 85 C Storage tempe...

Page 23: ...Page 23 of 26 IDAN CM17320HRS Dimensions and Pinout IDAN Frame FRONT BACK Note Drawings are not to scale Pin 1 Pin 20 Pin 37 Pin 19 Pin 1 Pin 20 Pin 37 Pin 19...

Page 24: ...PORT 3 5 6 Data Set Ready Request To Send CN6 2 PORT 3 6 7 Request To Send Transmit Data CN6 4 PORT 3 7 8 Clear To Send Receive Data CN6 6 PORT 3 8 Serial Port 3 9 Ring Indicator Clear To Send CN6 8 P...

Page 25: ...ORT 7 6 7 Request To Send Transmit Data CN10 4 PORT 7 7 8 Clear To Send Receive Data CN10 6 PORT 7 8 Serial Port 7 9 Ring Indicator Clear To Send CN10 8 PORT 7 9 10 Carrier Detect Request To Send CN9...

Page 26: ...RTD EMBEDDED TECHNOLOGIES OR AS A RESULT OF SERVICE OR MODIFICATION BY ANYONE OTHER THAN RTD EMBEDDED TECHNOLOGIES EXCEPT AS EXPRESSLY SET FORTH ABOVE NO OTHER WARRANTIES ARE EXPRESSED OR IMPLIED INCL...

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