USER'S MANUAL Copyright Notice
Contents
1. i PuBIQEIHOd NT 9IG ENS 1NO 910 BNO 23 I O Address Range Hex Pe oe 000 1FF 200 201 202 277 278 27F 280 2F7 2F8 2FF 300 377 378 37F 380 3AF 3B0 3BF 3C0 3CF 3D0 3DF 3E0 3EF 3F0 3F7 3F8 3FF APPENDIX C PC I O PORT ADDRESS MAP Function Base system Reserved Game control Reserved Second printer port Reserved COM2 Reserved First printer port Reserved Mono Disp Print adapter Reserved Color Graphics Reserved Floppy disk drive COM1 24 APPENDIX D CALIBRATION In the application of data acquisition and control it is important to constantly calibrate your measurement device to maintain its accuracy calibration program CALB726 BAS is provided on the PCL 726 software diskette to assist your calibration work D 1 VR Assignment There are 28 variable resistors VR on the PCL 726 to allow you making accurate adjustment on D A channels The location of each VR is indicated in Appendix B Connector Switch and VR Locations There are 6 sets of VR1 VR2 and VR3 for the adjustment of 6 D A channels respectively The functions of the VR s are listed below VR1 D A gain adjustment for each channel VR2 D A unipolar offset adjustment for each channel VR3 D A bipolar offset adjustment for each channel VR4 10V reference voltage adjustment for D A Ch 4 to Ch 46 VRS 5V reference voltage adjustment for D A Ch 4 to Ch 62. 100 Write the value into registers 110 OUT amp H2C0 0 HI OUT H2C0 1 LO 120 END 5 2 Digital Input and Output The PCL 726 provides 16 digital input channels and 16 digital output channels It is fairly straight forward to program the digital input and output channels Attention should be paid to the pin assignments of connectors CN1 digital output and CN2 digital input A reading operation on any of the D I ports will read in the value of the 8 corresponding digital input channels To access the D I ports in BASIC use the following statement VALUE INP ADDRESS Where ADDRESS is BASE 14 high byte or BASE 15 low byte A writing operation to any of the D O ports will set the desired value of the 8 corresponding digital output channels To access the D O ports in BASIC use the statement shown below OUT ADDRESS VALUE Where ADDRESS is BASE 12 high byte or BASE 13 low byte 21 APPENDIX A BLOCK DIAGRAM LIG SV 3 PE 1H iy gt IL WW Q t D Po x H oul gt LNO WNYHIVIO 9078 9982 1948 APPENDIX B CONNECTOR SWITCH AND VR LOCATIONS 8 9 ing v a PNI ET no 0 END roy BEG BEBER HELLER Pov LNdLNO 430 IN3EENO rar a TMS VAR HO ZE Zn i AG AOT Om zap Nt 38 I I i 1 I I l i i QHYI LNaLno V 0O IA H 7 ie AG AOt EE os E var p Ni EE Hd XIS S2l 1Od
3. Each channel can be set individually to any of the following ranges 0 to 5V 0 to 10V 5V 10V and 4 to 20mA current output Designed for rugged environment the PCL 726 is an ideal and economical solution for industrial application requiring multiple analog voltage and or current output channels In addition to the analog output PCL 726 also provides 16 channels of digital output and 16 channels of input The D and D O ports are TIL compatible and designed to be fully compatible with the available daughter boards those offer convenient solution to industrial ON OFF control and sensing application These daughter boards include PCLD 782 Isolated D I Board PCLD 785 Relay Output Board and PCLD 786 SSR amp Relay Driver Board A utility program disk is supplied with the purpose to minimize user s software effort The disk contains ready to run calibration program demonstration program as well as program examples 1 2 Features j 6 independent D A output channels dl 12 bit resolution double buffered D A converters Multiple voltage ranges 10V SV 0 to 10V 0 to SV and 4 to 20 mA current loop sink j All D A outputs will be at O volt initial state after RESET or POWER ON at either bipolar or unipolar mode 16 digital input and 16 digital output channels They are all TTL compatible id D I and D O ports are fully compatible with the valid PC LabCard daughter boards PCLD 782 16 channel opto isolated
4. D I board PCLD 785 16 channel relay output board PCLD 786 8 channel SSR output amp 8 channel relay driver board i Furnished utility software disk contains Calibration program Demonstration program Program examples DIP switch selectable wait state 0 2 4 6 wait states insertion to ensure the compatibility with very high speed PC s Screw terminal board PCLD 780 or PCLD 781 available for D A Output signal wiring 1 3 Specifications 1 3 1 Analog Output Channels 6 channels Resolution 12 Bits Double buffered Output range 0 to 5V unipolar O to 10V unipolar 5V bipolar 4 to 20mA current loop sink 10V with external DC or AC reference Reference voltage Internal 5V 0 05V 10V 0 05V 2 External DC or AC 10V max Conversion type 12 bit monolithic multiplying Analog devices AD7541AKN or equivalent Linearity 1 2 bit Accuracy 0 012 full scale range Temperature draft 2 PPM deg C full scale range Settling time 70 usec max with OP 07 output amplifiers 5 usec max with OP 37 output amplifiers upon special request Current loop 4 to 20 mA constant current sink Voltage output drive 5mA max Current loop excitation voltage Minimum 8V maximum 36V for 4 to 20mA current loop Reset power on status All D A channels will be at O volt output after reset or power on either bipolar or unipolar
5. VR6 10V reference voltage adjustment for D A Ch 1 to Ch 3 VR7 5V reference voltage adjustment for D A Ch 1 to Ch 3 CH1 Ch 1 current offset adjustment 4 mA CH2 Ch 2 current offset adjustment 4 mA CH3 Ch 3 current offset adjustment 4 mA CH4 Ch 4 current offset adjustment 4 mA CH5 Ch 5 current offset adjustment 4 mA CH6 Ch 6 current offset adjustmen mA D 2 D A Calibration The calibration program is written in BASIC language To use it simply load the program into BASIC and run the program The default I O port address setting in the program is hex 2C0 If address hex 2CO had been occupied by another device you may either replace that device with the PCL 716 on address hex 2C0 or modify the address setting in the calibration program It is strongly recommended that do not change 25 the program unless you thoroughly understand the PCL 726 calibration program Once the calibration program has been loaded and executed it used the graphic display and prompts to guide you through the calibration process In addition to the calibration program it is necessary to have a 3 1 2 digit multimeter to perform the calibration A slot extension card will make your access to the VR s easier The PC LabCARD product PCL 755A Slot Extension Card is an ideal product to support the slot extension A standard procedure to calibrate the PCL 726 card is illustrated below Step 1 Calibrate REFERENCE VOL
6. hex 2C0 in the factory If you need to adjust it to some other address range the switch settings for various base addresses are illustrated as below I O Address Switch Position Range Hex 1 2 3 4 5 A9 A8 A7 A6 A5 Al Fixed 200 20F 1 0 0 0 0 0 210 21F 1 0 0 0 0 1 220 22F 1 0 0 0 1 0 2C0 2CF 1 0 1 1 0 0 300 30F 1 1 0 0 0 0 3F0 3FF 1 1 1 1 1 1 Note ON 0 OFF 1 A4 A9 correspond to PC bus address lines means factory setting Switch position 6 is not used 2 2 2 Wait State Selection Switch name SW1 position 7 and 8 Some high speed PC s may require that wait states are inserted to achieve stable data transfer The PCL 726 can be configured with 0 2 4 or 6 wait state delays for each transfer of data The length of the 6 A ass e A A IR EIA wait state can be selected with the positions 7 and 8 on SW1 as shown below Switch Position Wait state 7 8 time delay 0 0 0 1 0 2 0 1 4 1 1 6 Note means factory setting 2 2 3 Reference and Mode Selection Jumper name JP1 JP2 of each channel There are two jumpers for D A reference source and output mode selections on each D A conversion channel The JP1 setting selects the reference of 5V 10V or external voltage The JP2 setting selects bipolar or unipolar mode of D A output JP1 setting Unipolar Bipolar s e Unipolar o Unipolar o Bipolar JP2
7. mode 13 2 Digital Input Channel 16 bits Level TTL compatible Input low 0 8V max Input high 2 0V min Input load 0 4mA max at 0 5V 0 05mA max at 2 7V 3 1 3 3 Digital Output Channel Level Output low Output high 16 bits TIL compatible 05V max when sink 8mA 24V min when source 0 05mA 1 3 4 General Specifications Power consumption 5V 500mA typ 1A max YO connector VO base address Operating Temp Storage Temp Weight 12V 50mA typ 110mA max 12V 14mA typ 90mA max 20 pin post header for Analog Digital I O ports Adapter available to convert to 37 pin D type connector Requires 16 consecutive address locations Base address definable by the DIP switches for address line A8 A4 Factory setting is hex 200 0 to 50 deg C 20 to 65 deg C 8 6 0z 242 89 gm 2 INSTALLATION 2 1 Initial Inspection Inside the shipping container you should find this operating manual and the PCL 726 card The PCL 726 was carefully inspected both mechanically and electrically before being shipped It should be free of marks and scratches and in perfect working order on receipt When unpacking check the unit for signs of shipping damage damaged box scratches dents etc If there is damage to the unit or it fails to meet specifications notify your local sales representative immediately Remove the PCL 726 interface card from its protective pack
8. the common ground It is fairly simple to connect a voltage output channel to a floating load A standard wiring diagram is illustrated below PCL 726 Side External Side l D A Y OUT Converter Flost Load For grounded load the signal should be connected as D A V OUT gt E gt i Grounded l I meme i 13 For some differential input loads an external ground wire is needed and the signal connection is recommended as following 3 3 4 to 20mA Current Output Connection The PCL 726 provides 6 channels of 4 to 20mA current output The current loop output utilizes the O to 5V unipolar voltage output as the driving source and a current drive circuit consists of a power FET reverse protection diode and a constant current source The voltage bias of this current output should be within 8 to 36 volts to insure correct operation A 24 volt power supply is ideal for this application The PCL 726 also provides internal 12 volt power source for current loop by user s selection There are three ways of connecting a grounded load with a floating supply a floating load with a grounded power supply a floating load with internal 12 volt supply The connections are shown below D A Converter O to SYV Unipolar Grounded Load Output 14 D A Converter O to 5Y Unipolar Output D A Converter O to BV Unipolar Output PC 42V Supply 3 4 Programmable A
9. the hole on top of the expansion slot and align the gold striped edge connector with the expansion slot socket Press the board firmly into the socket Y Replace the screw in the expansion slot retaining bracket 8 Attach necessary accessories e g 20 pin flat cable or connector adapter to the interface card based on your application requirements 9 Replace the system unit cover Connect the cables you removed in step 2 Turn the computer power on The hardware installation is now completed proceed to install the software driver 2 5 Software Installation A floppy diskette containing utility software is included with each PCL 726 to minimize your application programming work and support the PCL 726 calibration The utility programs include 1 Testing program 2 Demonstration programs 3 Calibration program It is strongly recommended that you make a working copy from the master copy diskette and save the master copy in safe place You may use the DOS COPY or DISKCOPY commands to copy the diskette files to another floppy disk or use the COPY command to copy the files to a hard disk Refer to your MS DOS users manual for details of how to 11 make backup copies of your diskettes Since the operation of the calibration program will be covered in Appendix D we will only explain the functions of these program files TEST726 EXE DEMO726A BAS DEMO726B BAS CALB726 BAS The object of the test program is to t
10. Digital and power supply ground Analog ground No connection Digital Output D O D O D O D O D O D O 11 D O 13 D O 15 D GND 12V Oo JU Go A Digital Input D I 1 D I 3 DVI 5 D I 7 D I 9 D I 11 D I 13 D I 15 D GND 12V Connector 3 CN3 D A Output Ch 1 to Ch 3 5V REF OUT REF OUT 5V D A D A D A D A D A D A 1 1 2 2 3 3 A GND NC Connector 4 2 4 Hardware Installation 4 V OUT REF IN V OUT REF IN V OUT REF IN V OUT REF IN V OUT REF IN V OUT REF IN 10V REF OUT 10V REF OUT D A 1 I OUT A GND D A 2 I OUT A GND D A 3 1 OUT A GND A GND NC D A 4 I OUT A GND D A 5 I OUT A GND D A 6 I OUT A GND A GND D GND 5V 12V Installing the card in your computer 1 Turn the computer off Turn the power off to any peripheral devices such as printers and monitors Disconnect the power code and any other cables from the back of Turn the system unit so the back of the unit faces the computer you Remove the system unit cover refer to your computer users guide if necessary Locate the expansion slots at the rear of the unit and choose any unused slot 10 3 Remove the screw that secures the expansion slot cover to the system unit save the screw to secure the interface card retaining bracket 6 Carefully grasp the upper edge of the PCL 726 card Align the hole in the retaining bracket with
11. PCL 726 SIX CHANNEL D A OUTPUT CARD USER S MANUAL Copyright Notice This documentation and the software routines contained in the PCL 726 software diskette are copyrighted 1989 by Advantech Co Ltd All rights are reserved Advantech Co Ltd reserves the right to make improvements to the products described in this manual at any time without notice No part of this manual may be reproduced copied translated or transmitted in any form or by any means without the prior written permission of Advantech Co Ltd Information provided in this manual is intended to be accurate and reliable However Advantech Co Ltd assumes no responsibility for its use nor for any infringements of rights of third parties which may result from its use Acknowledgement PC LabCard is a trademark of Advantech Co Ltd IBM and PC are trademarks of International Business Machines Corporation MS DOS is a trademark of Microsoft Corporation BASIC is a trademark of Dartmouth College Intel is a trademark of Intel Corporation Part No 2003726000 Rev Al Printed in Taiwan May 1994 Table of Contents 1 GENERAL INFORMATION 0 1 Lk DESenpuon 659 cent dee A A a 1 EZ FME Dc e a a ee ee 1 LJ SPENT NS Pre EG 2 151 Analog Output a Rd Eker 2 15 25 Digtal DDUE a dea 3 1 33 Digital Output yr A ES 4 1 3 4 General Specifications 4 Z INSTALLATION 00 sida e amp BEE ED SSE 5 2 1 Initial Anspecnon
12. R UNO Analog output Digital output Digital input Read operation on that byte Write operation on that byte R W DDABADPADAABAAAAZAS Usage 1 high byte data 1 low byte data 2 high byte data 2 low byte data 3 high byte data 3 low byte data 4 high byte data 4 low byte data 5 high byte data 5 low byte data 6 high byte data 6 low byte data 8 15 0 7 8 15 0 7 17 4 3 D A Output Registers The D A output registers are write registers using address BASE 0 to base 11 Data Format BASE 0 2 4 6 8 10 D7 D6 D5 D4 D3 D2 D1 DO D A 1 2 3 4 5 6 X X X X DA11 DA10 DA9 DAS High byte BASE 1 3 5 7 9 11 D7 D6 D5 D4 D3 D2 D1 DO D A 1 2 3 4 5 6 DA7 DA6 DAS DA4 DA3 DA2 DAL DAO Low byte LEGEND DA11 to DAO Digital to analog data DAO is the least significant byte LSB and DA11 is the most significant byte MSB of the D A data X Don t care The D A circuit utilizes a double buffer technique to eliminate the transient stage between the writing operations of high byte and low byte data The high byte data only the lower 4 bits are significant must be written first and it is then latched into a latch for temporary storage and does not change the analog output While the low byte is being sent the high byte data reaches the D A converter at the same time as the low byte data NOTE THE HIGH BYTE DATA MUST BE SENT FIRST 4 4 Digital I O Registers The PCL 726 offers 16 digital input chan
13. TAGE SOURCES including 10V REFI Ch 4 Ch 6 5V REF Ch 4 Ch 6 10V REF2 Ch 1 Ch 3 and 5V REF2 Ch 1 Ch 3 lt VR4 VR7 gt Step2 Adjust D A voltage output OFFSET of unipolar mode lt lt Adjust VR2 of each channel gt gt Step3 Adjust D A voltage output GAIN of unipolar mode lt lt Adjust VRI of each channel gt gt Step4 Adjust D A precision 4mA constant current lt lt Adjust VR named CHI to CH6 gt gt Step5S Adjust D A voltage output OFFSET of bipolar mode lt lt Adjust VR3 of each channel gt gt Note The voltage output GAIN of bipolar mode depends on the GAIN of unipolar mode so it is not necessary to be adjusted The current gain depends on a precise fixed resistor and does not need adjustment 26
14. aging by grasping the rear metal panel Keep the anti vibration packing Whenever you remove the card from the PC I O slot please store the card in the package for protection Discharge any static electricity by touching the back of the system unit before you handle this card You should avoid contact with materials that create static electricity such as plastic vinyl and styrofoam The board should be handled only by the edges to avoid static electric discharge which may damage the integrated circuits on the PCL 726 2 2 Jumper Settings The PCL 726 is designed with easy to use in mind There are one DIP switch and seven jumpers on the PCL 726 card and the function of each switch is discussed in this section You may want to refer to Appendix B for the physical location of each switch 2 2 1 Base Address Selection Switch name SW1 position 1 to 5 Most PC peripheral devices and interface cards are controlled through the input output I O ports These ports are addressed using the I O 5 port address space Appendix C provides a PC I O port address map to help you locate appropriate addresses for different devices The I O port base address for the PCL 726 is selectable via an 8 position DIP switch The PCL 726 requires 16 consecutive address locations in the I O space Valid addresses are from hex 200 to hex 3F0 however you might have used some of these addresses for other devices Your PCL 726 base address switch setting is set to
15. ana A AAA 5 22 Jumper Settings 4 4 6 H eee we dd sg 5 2 2 1 Base Address Selection 5 2 22 Walt State Selection oesi ea wae eee eae 6 2 2 3 Reference and Mode Selection 7 2 3 Connector Pin Assignment 8 2 4 Hardware Installation 10 2 5 Software Installation 11 3 SIGNAL CONNECTION ie ere kasse Dee ERA ES 13 SL INWOGUCHON er 13 3 2 Voltage Output Connection 13 3 3 4 to 20mA Current Output Connection 14 3 4 Programmable Attennuator Connection 15 3 5 Digital Signal Connection 16 4 REGISTER STRUCTURE AND FORMAT 17 delo IMTOdUcCiOn Dir dae dd de 17 4 2 I O Port Address Map ose aria edi ada 17 4 3 D A Output Registers aaa ns ns 18 4 4 Digital JO Registers 18 5 APPLICATION 323 eau a di A We RA a 20 Sil D A Applications e iii e cds Gt dea 20 5 2 Digital Input and Output o 21 APPENDIX A BLOCK DIAGRAM 22 APPENDIX B CONNECTOR SWITCH AND VR LOCATIONS 23 APPENDIX C PC I O PORT ADDRESS MAP 24 APPENDIX D CALIBRATION 4 25 PL VR ASSISAMENDE esa a ee eee he aS 25 Dz DA Calibration irector es 25 11 1 GENERAL INFORMATION 1 1 Description The PCL 726 provides six analog output channels on a single PC BUS add on card
16. est the PCL 726 functions easily by the user The test functions consist of D A voltage output D A current loop output digital output and digital input This demonstration program provides an example of writing I O ports to program D A 41 to generate 3V at unipolar mode and than programs D A 2 to generate 3V at bipolar mode Additionally there are also some explanations about how to program a current output of 10mA on D A 3 This demonstration program provides an example that programs D A 1 to D A 6 to generate a voltage waveform rising from SV to 5V and then a drop from 5V to SV at bipolar mode This calibration program provides a procedure to calibrate the voltage and current output of each D A channels The program will guide the user to adjust the variable resistors to get the best accuracy of the outputs 12 3 SIGNAL CONNECTION 3 1 Introduction Correct signal connection is one of the most important steps to assure your application system will send and receive data correctly Since most data acquisition applications involve voltage measurement correct signal connection will avoid costly damage to your equipment This section provides some useful information on signal connection in different types of data acquisition applications 3 2 Voltage Output Connection The PCL 726 supports 6 channels of D A voltage output There is only one output signal wire for each channel The voltage is referred to
17. nels and 16 digital output channels The digital input channels use the I O address BASE 14 and BASE 15 The digital output channels use the I O address BASE 12 and BASE 13 The data format of each port is as following 18 Data Format BASE 12 D7 D6 D5 D4 D3 D2 D1 DO D O high byte DO15 DO14 DO13 DO12 DO11 DO10 DO9 DOS BASE 13 D7 D6 D5 D4 D3 D2 D1 DO D O low byte DO7 DO6 DOS DO4 DO3 Do2 DOl DOO BASE 14 D7 D6 D5 D4 D3 D2 DI DO D I high byte DI15 DI14 DI13 DI12 DI11 DIJO DI9 DIS BASE 15 D7 D6 D5 D4 D3 D2 D1 DO D I low byte DI7 DI6 DIS DI4 DI3 DI2 DIl DIO LEGEND DO15 to DOO Digital output data DO7 to DOO is the low byte data and DO15 to DO7 is the high byte data MSB of the digital output port DI15 to DIO Digital input data DI7 to DIO is the low byte data and DI15 to DIT is the high byte data MSB of the digital input port 19 3 APPLICATION 5 1 D A Applications The PCL 726 provides 6 D A channels which use double buffered 12 bit multiplying D A converters The D A registers are write registers using address BASE 0 to BASE 11 When programming the D A channels please note that the most significant byte high byte data should be sent first It is then temporarily held by a register in the D A and not released to the D A converter After the least significant byte low byte data is written the low byte and high byte are added and passed to the D A converter at the same time This d
18. ouble buffering process protects the D A data integrity through a single step update The PCL 726 provides an internal precision fixed 5V reference If this voltage is used as D A input reference the D A output range will be 0 to 5V You may select other external DC or AC sources as the D A reference inputs The maximum reference voltage is 10V and the maximum D A output range is 10V Connector CN3 and CN4 support all D A signal connections The pin assignment of these connectors is described in Section 2 3 Section 3 2 and 3 3 cover the D A signal connections and gives an illustration of a wiring diagram The PCL 726 D A functions can be performed in the way by writing I O instructions to the registers directly A commonly used D A application is clearly illustrated in the demonstration program on your diskette The demonstration program DEMO726A BAS on the PCL 726 software diskette provides a complete explanation of programming either a single D A channel or more D A channels The following program examples written in BASIC show how to pro gram D A channel 1 to generate a voltage of 3V 10 Figure out the values of the low and high bytes 20 The jumper is set to 5V reference and unipolar 30 and the D A range is OV to 5V 20 40 V 3 0 50 X V 5 4096 60 X V 5 2048 2048 for bipolar 5V to 5V 70 IF X gt 4095 OR X lt 0 THEN PRINT OVERFLOW END 80 HI3 X 256 90 LO X MOD 256
19. setting External ref 10V ref 5V ref EXT o o EXT o o EXT o o 10v 0 5 10V o o 10V o o 5V o o 5V 5V Some typical combinations of JP1 and JP2 are shown as following Output range JP2 JP1 o o 0 to 5V o Oo Unipolar oo o o o oO 0 to 10V 93 Unipolar o o o Oo O O O O 5V o o Bipolar 0 5 O O O O 10V El Bipolar o o O O 4 to 20mA o LS 95 o o Ext Ref Programmable o o Attenuator o Oo o oO Note 1 For programmable attenuator function should the input signal should be connected to the ref in pin of CN3 and CN4 2 means factory setting 2 3 Connector Pin Assignment The PCL 726 is equipped with two 20 pin insulation displacement mass termination connectors accessible from the rear plate and two other 20 pin insulation displacement connectors on board All these connectors can be connected to the same type of flat cables or connected to 37 pin D type connectors through our PCLK 1050 industrial wiring kit Please refer to Appendix B for the location of each connector The following diagrams illustrate the pin assignment of each connector Legend VOUT I OUT REF OUT REF IN D O D A D GND AGND NC Connector 1 CN1 Connector D O 0 D O 2 D O 4 D O 6 D O 8 D O 10 D O 12 D O 14 D GND 5V 2 CN2 D I 0 Analog voltage output Analog current output Reference voltage output Voltage reference input Digital output Digital input
20. ttennuator Connection A variety of D A operations can be supported by your PCL 726 example the PCL 726 can function as a digital attenuator by inputing variable AC or DC references or can be used to generate arbitrary waveform outputs The connection is HO E I 09 10Y S External oo ZEV AEF source REF IN D A Driver 2 P Converter AMP Float Load A GND a S7 15 3 5 Digital Signal Connection The PCL 726 has 16 digital input and 16 digital output channels The digital I O levels are TTL compatible To transmit or receive digital signal to from other TTL devices the connection is TTL Devices To receive an OPEN SHORT signal from a switch or relay a pull up resistor must be added to ensure the high level when open 4 REGISTER STRUCTURE AND FORMAT 4 1 Introduction The PCL 726 requires 16 consecutive addresses in I O space The most the PCL 726 is understanding meaning of the 16 registers addressable from the selected I O port base address A summary map of the functions of each address and the data important issue in programming format of each register are given in the following sections 4 2 I O Port Address Map The following table provides the location of each register and driver relative to the base address and its usage Legend D A D O D I BASE WO JN Om Y N ER ft AR a pa U
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