Warning: When installing the XR16L784 board, follow ESD Safety
Contents
1. Click the transfer button Click Quick Brown Fox Click the OK button 14 15 16 17 18 19 HS BV DB Bare THOS DTS Repeat steps 2 thru 19 for the remaining ports Now click the transfer button on the SerialUl ExarXR17C15x 16L78x UART Series Test Program for each port on the local side and remote side You are now transmitting and receiving to the selected ports You will see the packet count number increasing When you are completed with the transfer of data click the stop button on each port Change settings in port settings 1 Select the test on the SerialUl window and then stop 2 Select the setup and port settings 3 Repeat steps 2 thru 19 and or modify the setting 4 Follow steps 13 thru 19 Notes e 1 If the transmitted or receive data is slow it is possible that one of the RS 232 is bad EXAR Corp 48720 Kato Road Fremont CA 94538 Tel 510 668 7000 www exar com 784usersmanual rev 1 2 Page 6 of 62. transmit any data set up the GUI application program Select Start Program Exar78x Serial78xUI Below is the description of the Menus and different set ups Seri alUl ExarXR17C15x XR16L78x UART Series Test Program On the top of the menu there is a pull down menu Selections are as following TEST Start Start the transmission of data Stop End the transmission of data Delay Used to delay transmitted data to the next transmitted data 10msecs Exit Exit the application Config Load Loading a File from the hard or floppy drive Save Save desired files for future use Help Help files EXAR Corp 48720 Kato Road Fremont CA 94538 Tel 510 668 7000 www exar com 784usersmanual rev 1 2 Page 3 of 6 Z EXAR Setup Port Settings used to enable or disable ports settings View Toolbar Enable or disable toolbar Status Bar Enable or disable status bar Help About Serial78xUI product description and revision level Tool bar description There are six icons that can be used in the SerialUI operation From left to right as follows Port Setting See below Test Start Start test Test Stop Stop test Load Configuration Load configuration Save Configuration Save configuration Help See below Get Started and Set Up Port Setting Now you can set one or eight ports as needed by selecting Setup and Port Settings You will see the Ports Properties Menu Select the desired Port by Checking Open Port for Testi
3. JP14 FACTORY USE JP15 FACTORY USE JP12 1 TXDO_RS232 JP12 2 RXDO_RS232 JP13 1 TXD1_RS232 JP13 2 RXD1_RS232 J16 1 RXDO J16 2 RX0 J16 3 TXD1 J17 1 RXD1 J17 2 RX1 J17 3 TXDO JP29 2 RXD1_RS232 EXAR Corp 48720 Kato Road Fremont CA 94538 Tel 510 668 7000 www exar com 784usersmanual rev 1 2 Page 2 of 6 Z EXAR SW1 1 8 ADDRESS SELECT 400 B00 SW3 1 16 MODE 68 MODE SW3 2 4 FACTORY USE SW4 FACTORY USE Table 1 Port number label association to internal UART channels Table 3 XR16L784 Octopus Cable port number label Channel 0 Port 1 Channel 1 Port 2 Channel 2 Port 3 Channel 3 Port 4 Installation of NT4 0 Driver Application and GUI Program IT IS RECOMMENDED TO HAVE A SYSTEM THAT IS AT LEST 350MHZ Turn your computer on and set your display setting to 1024 by 768 resolution Install the XR16L78x NT Driver application and GUI The Insert XR16L784 Disk in Drive D Run D setup exe Follow the setup Instructions Press Next gt Press Next gt Choose IRQ 5 Default Select Com Number Port 5 Default Select Com Base I O address 5 500 Default Press Next gt Press Finish Note IRQ COM ports and base address are jumper and soft selectable If it is changed make sure that the correct jumpers and soft options are selected Remove disk from Drive D Re boot your computer device driver and GUI are now installed and are ready to be used Before you can
4. GUI application program you are ready to Transmit Data to a Remote Site or communicate with another Computer If you want to Communicate from Computer to Computer use a Crossover Cable that implements Full Null Modem connections Refer to Table 5 Table 5 TX pin2 to RX pin 3 RX pin 3 to TX pin 2 CTS pin 5 to RTS pin 4 RTS pin 4 to CTS pin 5 GND pin 7 to GND pin 7 DRS pin 8 to DTR pin 20 DTR pin 20 to DSR pin 8 EXAR Corp 48720 Kato Road Fremont CA 94538 Tel 510 668 7000 www exar com 784usersmanual rev 1 2 Page 5 of 6 Z EXAR Example 1 The following example is to be done on the local computer and remote computer The settings have to be the same Steps 1 thru 19 are for one port repeat for the other 7 ports Load the SerialUIl ExarXR17C15x 16L78x UART Series Test Program Select the setup and then port settings Check the box that says open port for testing Set the baud rate for porti for 921 6k Set data length 8 Set parity none Set stop bits 1 Set flow control None Set com base for Com5 Set DTR Hysteresis for 6 0 Set RTS Hysteresis for 8 and leave the box checked 1 Set the TxFIFO trigger level to 32 and leave box checked 2 Set the RxFIFO trigger level to 32 and leave box checked 3 Press the OK button on bottom left corner of window Go to the top left corner and click test Select start and click Find the test forever and check
5. Z EXAR XR16L784 Evaluation Board User s Manual Rev 1 2 Introduction Exar is proud to announce our new ISA 4 Port UART The XR16L784 is fully feature and 16550 compatible For a list of features refer to the data sheet at www exar com This user s manual will help you to install the Windows NT 4 0 Driver and Application Program Once installed it demonstrates it s transmit and receive capability on all four ports in full duplex and two in half duplex The application program allows you to select operating parameters FIFO trigger levels hardware or software flow control and selection of test data patterns Description On the XR16L784 evaluation board we have switches for addressing from 400 to BOOH and jumpers IRQ3 7 and IRQ10 14 We have added a 3 3v regulator to operate the XR16L784 at 5v or 3 3v There are four ports that use the four RS 232 ports 921 4kbps and one RS 485 2 5Mbps ports option1 There is a infrared IR circuit that is used for transmitting and receiving data at maximum of 4 Mb s option 2 There is an external clock circuit U4 or the standard crystal 14 7456Mhz U4 clock multiplier chip ST49C101A XX is used factory external clock test U4 can be clocked at multiple of 2 3 4 5 6 8 10 and 12 depending on the part selected ST49C101A XX parts not installed On the XR16L784 evaluation board there are several sets of jumpers Jumpers and Test Points are described under default setting below Warning Wh
6. en installing the XR16L784 board follow ESD Safety Procedures Ground yourself to prevent damage to the any electronic component Default setting for the XR16L784 Table 1 JUMPER FUNCTION J2 3 3V J5 ENIR Disable JP3 IRQ5 J16 1 amp 2 RXDO J17 1 amp 2 RXD1 SW1 2 500H SW3 2 3 4 amp 5 Factory Testing EXAR Corp 48720 Kato Road Fremont CA 94538 Tel 510 668 7000 www exar com 784usersmanual rev 1 2 Page 1 of 6 Z EXAR Selectable Jumpers for the hardware on the XR16L784 Table 2 JUMPERS FUNCTION J2 1 VREG Power to UART circuit not installed J2 2 3 3V Power to UART J2 3 5V Power to UART J3 RESET J5 ENIR J6 3 3V_MAX not installed OPTIONAL 1 J7 RS 485 not installed OPTIONAL 1 J8 RXD TXD OUTPUT RS 485 not installed OPTIONAL 1 J9 TXD3 RXD3 SELECT RS 485 not installed OPTIONAL 1 J10 TXD3 IR not installed OPTIONAL 2 J11 MODE 0 IR not installed OPTIONAL 2 J12 RXD3 IR not installed OPTIONAL 2 J13 MODE 1 IR not installed OPTIONAL 2 J14 FIR_SEL IR not installed OPTIONAL 2 J15 RS 232 CONNECTOR 4 CHANNELS J16 1 RXDO J16 2 RX0 J16 3 TXD1 J17 1 RXD1 J17 2 RX1 J17 3 TXDO J18 JTAG FOR CPLD PROGRAMMING FACTORY USE J19 FACTORY USE JP1 IRQ3 JP2 IRQ4 JP3 IRQ5 JP4 IRQ7 JP5 IRQ9 JP6 IRQ10 JP7 IRQ11 JP8 IRQ12 JP9 IRQ14 JP10 IRQ15
7. isplays errors that are transmitted and received When used in full duplex you must set the Transmit and Receive Data the same If not you will detect errors on the Error Count Box To be implemented Packet Count Counts the lines transmitted Displayed Output RS 232 Signals DCD Displays the status of Carrier Detect To be implemented RXD Displays the status of Receive data To be implemented RlI Displays the status of Ring Indicator To be implemented DSR Displays the status of Data Set Ready To be implemented CTS Displays the status of Clear to Send To be implemented Internal Loop Test This box enables the Transmit Data to the Receive Data internally of the XR16L78x To be implemented Test These box enables testing functions to repeat Stop On can be defined by two possibilities 1 Error Stop the Test when an Error has been Detected To be implemented 2 Time Run the Test per time set HR MIN Run Button This button starts the Test Transmission of Data and Receiving of Data Note This button will not work until you start the test from the main menu Test Start Stop Button This button stops the Test in progress Transfer Button This button allows you Select Data Patterns 1 Quick Brown Fox Quick Brown Fox Jumps Over the Lazy Dog 2 Alphabets 0123456789abcdefghijkImnopqrstuvwxyz 3 User Pattern user defined pattern 4 File This is any text file you want to transmit e e Ready to Transmit and Receive Data e Now that you have completed the
8. ng For each Channel Select the Baud Rate at which you want to transmit and receive Select each channel s Baud Rate 110 to 921 600 are available Select the Data Length 8 Parity None Stop Bits 1 Flow Control Hardware RTS CTS Software Xon Xoff and None No Flow Control None Com Base Com5 Refer to Table 4 Table 4 Standard PC assigned Com Port Com1 Com2 Com3 Com4 XR16L78x Com Port Com5 Com6 Com7 Coms DTR Hysteresis 6 RTS Hysteresis 8 TX FIFO Trigger Level 32 Rx FIFO Trigger Level 32 Note Set the Trigger Levels as follows 16 lt Tx Rx Trig Level lt 48 EXAR Corp 48720 Kato Road Fremont CA 94538 Tel 510 668 7000 www exar com 784usersmanual rev 1 2 Page 4 of 6 Z EXAR Port Enable Top left corner on each Port s Menu This will enable or disable the windows for transmit and receive data Make sure that the transmit side and receive side are the same settings Once you have enabled the Port setting click OK The Port Property Menu is closed and Select the pull down Test Menu Click on Start This will launch the SerialUl ExarXR17C15x 16L78x UART Series Test Program Serial Communication Test Window Displayed Input RS 232 signals TXD A checkmark is seen in this box when Transmitting Data To be implemented RTS Displays the status of Request to Send To be implemented DTR Displays the status of Data Terminal Ready To be implemented Error Count D
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