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DAQ 653 X User Manual High-Speed Digital I/O Devices for PCI, PXI , CompactPCI, AT, EISA, and PCMCIA Bus Systems 653 X User Manual ™ January 2001 Edition Part Number 3214 64C-01.
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Important Information Warranty The AT-DIO-32HS, DAQCard-6 533 for PCMCIA, PCI-6534, PCI-DIO-32HS, PXI-653 3, and PXI-6534 devices are warranted against defects in materials and workmanship for a peri od of one year from the date of s hipment, as evidenced by receipts or ot her documentation.
Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless communications from interference.
• Connect the equipment into an outlet on a circuit different f rom that to which the receiver is connected. • Consult the dealer or an experienced radio/T V technician for help. Canadian Departmen t of Communications This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Conventions The follo wing con ventions appear in this manual: < > Angle brackets that contain numbers separated b y an ellips is represent a range of v alues associated with a bit or signal name — for example, DBIO<3..0>. » The » symbol leads you through nested menu items and dial og box options to a final action.
© National Instruments Corporation vii 653X User Manual Contents Chapter 1 Getting Started with Your 653 X 653 X Device Overview ............ ........... .............. ........... ............... ........... ........... ............. 1-1 Control Lines .
Contents 653X User Manual viii ni.com Choosing Whether or Not to Use a Programmable Delay ........................ ...... 2-8 Choosing Continuous or Finite Data Transfer ................. .............. .............. ... 2-9 Finite Transfers ........
Contents © National Instruments Corporation ix 653X User Manual External REQ Signal Source ........... .............. ............... ........... .............. .......... 3-2 Handshaking I/O Timing Diagrams ............. .............. ........... .
© National Instruments Corporation 1-1 653X User Manual 1 Getting Started with Y our 653 X The 653X User Manual describes installing, configuring, settin g up, and programming applicatio ns for your AT-DIO-32HS, DAQ Card-6533 for PCMCIA, PCI-6534 , PCI-DIO-32HS, PX I-6533, PXI-6534, or PCI/PXI-7030/6533 d evice.
Chapter 1 Getting Started with Y our 653X 653X User Manual 1-2 ni.com Use Group 1 and 2 to: • Generate or recei v e digital patterns and wa v eforms timed b y a TTL clock • T ransfer data between .
Chapter 1 Getting Started with Y our 653X © National Instruments Corporation 1-3 653X User Manual Choosing Y our Programming Software When programming your National Instrumen ts measurement hardw are, you can use either National Instruments application software or another application development env ironment (AD E).
Chapter 1 Getting Started with Y our 653X 653X User Manual 1-4 ni.com Using LabVIEW , Measurement Studio, or V irtualBench so ftware greatly reduces the dev elopment time for your data acquisition and con trol application.
Chapter 1 Getting Started with Y our 653X © National Instruments Corporation 1-5 653X User Manual T o do wnload a free copy of the most recent version of NI-D A Q, click Downloa d Softwar e at ni.
Chapter 1 Getting Started with Y our 653X 653X User Manual 1-6 ni.com Remov e the device from the package and inspect the de vice for loose components or any sign of damage. Notify National Instruments if the de vice appears damaged in any way . Do not install a damaged device into your computer .
Chapter 1 Getting Started with Y our 653X © National Instruments Corporation 1-7 653X User Manual Installing the PXI-6533, PXI-6534, or PXI-7030/6533 You can install a PXI-653 X or PXI-7030/6533 device any available 5 V peripheral slot in your PXI or CompactPCI chassis.
Chapter 1 Getting Started with Y our 653X 653X User Manual 1-8 ni.com 5. Insert the A T -DIO-32HS into an A T (16-bit ISA) or EISA slot. It can be a tight fit, b ut do not force the device into place. 6. Scre w the mounting bracket of the A T -D IO-32HS to the back panel rail of the computer .
Chapter 1 Getting Started with Y our 653X © National Instruments Corporation 1-9 653X User Manual T o create a virtual channel, or to lea rn about other capabilities of MAX, read the MAX online help by selecting Help » Help Topics and select NI-DAQ from the menu.
© National Instruments Corporation 2-1 653X User Manual 2 Using Y our 653 X To begin using your 653 X device, navigate this chapter in the following order: 1. Choose the correct mode of operation to perform using the table below . 2. Follo w th e instructions for t he application you want to perform.
Chapter 2 Using Y our 653X 653X User Manual 2-2 ni.com Controlling and Monitoring Static Digital Lines—Unstrobed I/O This section explains how to cont rol and monitor static digi tal lines through software-timed reads and writes to and from th e digital lines of your 653 X device.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-3 653X User Manual Adv antages of using the wired-OR driv er include: • The ability to connect t wo or more wired-OR out puts together wit hout damaging the driv ers.
Chapter 2 Using Y our 653X 653X User Manual 2-4 ni.com Connecting Signals Connect digital input signals to the I/O connector using th e pinout diagrams, Figures C-1, 653X I/O Connector 68-Pin Assignments , and C-2, 68-to-50-Pin Adapter Pin Assi gnments .
Chapter 2 Using Y our 653X © National Instruments Corporation 2-5 653X User Manual Figure 2-1. Programming Unstrobed I/O in NI-DAQ s Figure 2-2. Programming Unstrobed I/O in LabVIEW/LabVIEW RT Progra.
Chapter 2 Using Y our 653X 653X User Manual 2-6 ni.com • LabVIEW — Use one of the top-level VIs: the Read From Digital Line VI to read from a digital port, and the Wr ite to Digital Line VI to write to a digital port. The dig ital channel number is 4 and th e port width is 4.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-7 653X User Manual Deciding Which Handshaking Protocol to Use The 653 X device supports several different handshaking protocols to communicate with your peripheral device. The pro tocol you select will determine the timing of the ACK and REQ si gnals.
Chapter 2 Using Y our 653X 653X User Manual 2-8 ni.com T o set the direction of the PCLK signal: • NI-D A Q C interface — Set the ND_CLOCK_REVERSE_MODE to ND_ON in Set_DAQ_Device_Info. • LabVIEW — Set the Clock Reverse Mode attribute to ON in the DIO Parameter VI.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-9 653X User Manual The state machine diagrams in Chapter 3, Timing Diagrams , show more precisely where this delay occurs in the handshaking sequence.
Chapter 2 Using Y our 653X 653X User Manual 2-10 ni.com Y ou hav e the opt ion to allow it to re generate data that has already been outputted. As i n continuous input , you sp ecify the device to all.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-11 653X User Manual Figure 2-3. Connecting Signals If you are using the b urst protocol, make the connection to the appropriate PCLK pin on the 653 X de vice.
Chapter 2 Using Y our 653X 653X User Manual 2-12 ni.com Controlling the startup sequence does not apply to b uffered (block) operations. In a buf fered operation, the NI-D A Q C interface configures and enables the 653 X de vice at the same time, when you start the actual data transfer .
Chapter 2 Using Y our 653X © National Instruments Corporation 2-13 653X User Manual Figure 2-4. Programming Buffered Handshaking I/O in NI-DAQ Read? DIG_Grp_Mode DIG_Grp_Config Read? Continuous? No D.
Chapter 2 Using Y our 653X 653X User Manual 2-14 ni.com Figure 2-5. Programming Unbuffered Handshaking I/O in NI-DAQ DIG_Grp_Config Input? DIG_Grp_Mode DIG_Grp_Status Ready? DIG_In_Grp DIO_Grp_Config .
Chapter 2 Using Y our 653X © National Instruments Corporation 2-15 653X User Manual Figure 2-6. Programming Handshakin g Input in LabVIEW/LabVIEW RT DIO Star t VI DIO P arameter VI DIO Clear VI Buffe.
Chapter 2 Using Y our 653X 653X User Manual 2-16 ni.com Figure 2-7. Pr ogramming Handshaking Output in LabVIEW/LabVIEW R T By default, for output buf fered transfers t he 6534 device will preload the on board memory with data before starting the output operation.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-17 653X User Manual The preloading process will cause a small delay between the start command in software and the actual start of data transfer .
Chapter 2 Using Y our 653X 653X User Manual 2-18 ni.com Deciding T ransfer Direction You can choose to send data from your 653 X device to the peripheral device (output), or from the peripheral device to your 653 X device (inpu t).
Chapter 2 Using Y our 653X © National Instruments Corporation 2-19 653X User Manual For e xample, if you specify a timebase of 100 kHz and a timebase di visor of 25, the resulting acquisition/generation rate would be 4 kHz. 100 kHz/25 = 4 kHz. Note If you are using a version of NI-D A Q prior to version 6.
Chapter 2 Using Y our 653X 653X User Manual 2-20 ni.com data is in the buffer, transfer stops. If the st op trigger arrives before all the pretrigger data is acquired, NI-DAQ returns an error.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-21 653X User Manual • The polarity (whether to trigger on data that matches or mismatches the specified pattern) For e xample, if you.
Chapter 2 Using Y our 653X 653X User Manual 2-22 ni.com the Data Overwrite/Regenerate parameter in the Digital Buffer Control VI, called by the DIO Start VI. Continuous Output Similarly, with continuous ou tput, the 6 53 X device continuously reads data from com puter memory.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-23 653X User Manual Monitoring Data T ransfer To monitor your data transfer once data transfer starts: • NI-D A Q C interface — Call DIG_Block_Check to monitor finite data transfer .
Chapter 2 Using Y our 653X 653X User Manual 2-24 ni.com If you are using external start a n d/or stop triggers, connect to the appropriate pins — start trigger (ACK/ST AR TTRIG) and/o r stop trigger (STOPTRIG). Creating a Program Using the following flowcharts as a guide, create a program to perform pattern I/O.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-25 653X User Manual Figure 2-13. Programming Pattern I/O (Continuous) in NI-DAQ Figure 2-14.
Chapter 2 Using Y our 653X 653X User Manual 2-26 ni.com Note If you are performing a finite pattern output operation, you can cal l the DIO W ait VI instead of the DI O Write VI after the DIO Start VI . For more information abou t these VIs, see the LabVIEW Help .
Chapter 2 Using Y our 653X © National Instruments Corporation 2-27 653X User Manual Deciding Which Lines Y ou W ant to Monitor You need to specify w hich of the lin es in your acquisit ion you want to monitor for changes.
Chapter 2 Using Y our 653X 653X User Manual 2-28 ni.com The three types of trigger signals a vailable are the start trigger , the stop trigger , or the start and stop trigger . Start T rigger A start trigger is a trigger that initiates a pattern I/O upon receipt of a hardware trigger on the A CK (STARTTRIG) pin.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-29 653X User Manual Figure 2-18. Usin g a Start and Stop T rigger Pattern-Matching T rigger Instead of using an external signal on the start/stop trigger pins on the I/O connector, you may start or stop (n ot both) an operation once a user-specified digital pattern is matched .
Chapter 2 Using Y our 653X 653X User Manual 2-30 ni.com Figure 2-19. Pattern-Detection T rigger Example Tip T o pre vent a transient data v alue during line switching from falsely causing a match, set a v alid pattern for at least 60 ns to guarantee detection.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-31 653X User Manual Choosing DMA or Interrupt T ransfers When using DMA (by default), the 6534 device transfers data in 32-byte blocks and the 6533 device transfers data in 4 byte bl ocks.
Chapter 2 Using Y our 653X 653X User Manual 2-32 ni.com Figure 2-20. Programming Change Detection (Continuous) in NI-DAQ Figure 2-21. Programming Change Detection (Single Buffer) in NI-DAQ DIG_DB_Half.
Chapter 2 Using Y our 653X © National Instruments Corporation 2-33 653X User Manual Figure 2-22. Programming Change Detection for LabVIEW/LabVIEW RT DIO Config VI T rigger Config VI DIO Read VI Done?.
© National Instruments Corporation 3-1 653X User Manual 3 T iming Diagrams This chapter contains t iming diagrams for the h andshaking and pattern I/O modes. You can use these diagrams to get a detail ed understanding about what happens in hardware when using these modes.
Chapter 3 Timing Diagrams 653X User Manual 3-2 ni.com Figure 3-1. Internal Request Timing Diagram External REQ Signal Source Use an external request when you want to time data transfers using an external signal on the REQ pin of the I/O connector. You can select t he polarity of the REQ signal.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-3 653X User Manual during, or after the REQ edge. If ST AR TRIG is asserted too close to the REQ edge, it may not be recognized until the next REQ edge.
Chapter 3 T iming Diagrams 653X User Manual 3-4 ni.com Handshaking I/O T iming Diagrams This section compares of the handshaking I/O protocols and includes timing diagrams for each: • Handshaking se.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-5 653X User Manual In order for the 653 X device to communicate with peripheral de vices in handshaking mod e, it is important to verify that: • Y ou are using complementary pro tocols.
Chapter 3 T iming Diagrams 653X User Manual 3-6 ni.com Figure 3-3. Bu rst T ransfer Example (Input) Figure 3-4. Burst T ransfer Ex ample (Output ) Note Since data is transferred only when both the 653.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-7 653X User Manual The 653 X de vice can either driv e an output clock signal onto the PCLK line or recei ve an input clock signal from the PCLK lin e. By default, the PCLK line is set for input during output transfers, and set for output during input transfers.
Chapter 3 T iming Diagrams 653X User Manual 3-8 ni.com Figure 3-5. Burst Input Timing Diagram (Default) Parameter Description Minimum Maximum Input Parameters t rs Setup time from REQ valid to PCLK 12.
Chapter 3 T iming Diagrams © National Instruments Corporatio n 3-9 653X User Manual Figur e 3-6. Burst Output Timing Diagram (Default) Parameter Description Minimum Maximum Input Parameters t pc PCLK.
Chapter 3 T iming Diagrams 653X User Manual 3-10 ni.com Figure 3-7. Bu rst Input T iming Diagram (PCLK Reversed) Parameter Description Minimum Maximum Input Parameters t pc PCLK cycle time 50 — t pw.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-11 653X User Manual Figure 3-8. Burst Output Timing Diagram (PCLK Reversed) Parameter Description Minimum Maximum Input Parameters t rs.
Chapter 3 T iming Diagrams 653X User Manual 3-12 ni.com Using Asynchronous Protocols All handshaking protoco ls except b urst are asy chronous. The asynchronous protocols include 8255 emulat ion, lev el ACK, leading edge, trailing edge, and long pulse.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-13 653X User Manual 653 X device terminology dif fers from 8255 termi nology . • Input — The REQ line carries the 8255 STB (Strobe) input signal, and the 653 X device A C K line carries the 8255 IBF (Input Buffer Full) output signal.
Chapter 3 T iming Diagrams 653X User Manual 3-14 ni.com Figure 3-10. 8255 Emulation Input State Machine W ait For Space W ait For REQ Programmab le Delay W ait For REQ When REQ Unasser ted, Latch Input Data When 6533 Device has space for data, input data.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-15 653X User Manual Figure 3-11. 8255 Emulation Output Handshaking Sequen ce Reference Point Action Steps 1 When the 653 X device has d.
Chapter 3 T iming Diagrams 653X User Manual 3-16 ni.com Figure 3-12. 8255 Emulation Output State Machine W ait For Data W ait For REQ Programmab le Delay W ait For REQ When REQ Unasser ted When 6533 Device has data to output, output data.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-17 653X User Manual Figure 3-13. 8255 Emulation Output T iming Diagram Parameter Description Minimum Maximum Input Parameters t r*r REQ.
Chapter 3 T iming Diagrams 653X User Manual 3-18 ni.com Using the Level-ACK Protocol In level-ACK p rotocol, the 653 X device asserts the ACK signal when ready for a transfer and holds the ACK signal level until an active-g oing edge occurs on the REQ line.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-19 653X User Manual Figure 3-15. Level ACK Input State Machine W ait For Space W ait For REQ Programmab le Delay Programmab le Delay W ait For REQ When REQ Asser ted Clear ACK When 6533 Device has space for data, input data.
Chapter 3 T iming Diagrams 653X User Manual 3-20 ni.com Figure 3-16. Level ACK Input Timing Diagram Parameter Description Minimum Maximum Input Parameters t rr* REQ pulse widt h 75 — t r*r REQ inact.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-21 653X User Manual Note W ith REQ edge latching enabled (default), the REQ edge determines when data will be latched. In put data valid has to be held before the activ e go ing REQ edge a minimum of t rdi ns.
Chapter 3 T iming Diagrams 653X User Manual 3-22 ni.com Figure 3-18. Level ACK Output State Machine W ait For Data W ait For REQ Programmab le Delay Programmab le Delay W ait For REQ When REQ Asser ted Clear ACK When 6533 Device has data to output, output data.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-23 653X User Manual Figure 3-19. Level ACK Output Timing Diagram Note W ith REQ edge latching d isabled (default), output data v alid wil l hold t rdo ns after the REQ edge is asserted.
Chapter 3 T iming Diagrams 653X User Manual 3-24 ni.com Using Protocols Based on Signal Edges The 653 X device can communicate via pulses on the ACK and R EQ lines. The three edge protocols are: • T railing-edge pro tocol — The trailing edge of the ACK or REQ pulse indicates that the 653 X device or peripheral device is ready for a transfer.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-25 653X User Manual Using the T railing-Edge Protocol Figure 3-20. T railing Edge Input Handshaking Sequence Figure 3-21. T railing Edge Input State Machine Reference Point Action Steps Initial State A CK is deasserted.
Chapter 3 T iming Diagrams 653X User Manual 3-26 ni.com Figure 3-22. T railing Edge Input Timing Diagram Note When REQ-edge latching is enabled (default), the REQ edge determines when data will be latched. Input data valid needs to be held t r*di after the trailing edge of REQ occurs.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-27 653X User Manual Figure 3-23. T railing Edge Output Handshaking Sequence Figure 3-24. T railing Edge Output State Machine Reference Point Action Steps Initial State A CK is deasserted.
Chapter 3 T iming Diagrams 653X User Manual 3-28 ni.com Figure 3-25. T railing Edge Output Timing Diagram Note When REQ-edge latching is disabled (default), output data valid will be held t r*do(1) ns after the trailing edge of REQ occurs.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-29 653X User Manual Using the Leading-Edge Protocol Figure 3-26. Leading Edge Input Handshaking Sequence Reference Point Action Steps Initial State A CK is deasserted. The 653 X device w aits for an acti ve REQ to indicate that the peripheral de vice is ready .
Chapter 3 T iming Diagrams 653X User Manual 3-30 ni.com Figure 3-27. Leading Edge Input State Machine W ait For Space W ait For REQ Programmab le Delay Programmab le Delay W ait For REQ When REQ Asser ted When 6533 Device has space for data, input data.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-31 653X User Manual Figure 3-28. Leading Edge Input Timing Diagram Parameter Description Minimum Maximum Input Parameters t rr* REQ pul.
Chapter 3 T iming Diagrams 653X User Manual 3-32 ni.com Note W ith REQ edge latching enabled (default), the REQ edge determines when data will be latched. Input data valid has to be held before an acti ve going REQ edge a minimum of t rdi ns. W ith REQ edge disabled, it has to be held t adi after the next acti ve-going A CK signal edge occurs.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-33 653X User Manual Figure 3-30. Leading Edge Output State Machine W ait For Data W ait For REQ Programmab le Delay Programmab le Delay W ait For REQ When REQ Asser ted Clear ACK Pulse When REQ Unasser ted Initial State: ACK Cleared When 653 X Device has data to output, output data.
Chapter 3 Timing Diagrams 653X User Manual 3-34 ni.com Figure 3-31. Leading Edge Output T iming Diagram Note W ith REQ edge latching d isabled (default), output data v alid wil l hold t rdo ns after the REQ edge occurs. With REQ edge latching enabled, that data will be hel d for at most t rdo ns after the REQ edge deasserts.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-35 653X User Manual Using the Long-Pulse Protocol Figure 3-32. Long Pulse Input Handshaking Sequence Reference Point Action Steps Initial State A CK is deasserted. The 653 X device w aits for an acti ve REQ to indicate that the peripheral de vice is ready .
Chapter 3 T iming Diagrams 653X User Manual 3-36 ni.com Figure 3-33. Long Pulse Input State Machine W ait For Space W ait For REQ Programmab le Delay Programmab le Delay W ait For REQ When REQ Asser ted When 6533 Device has space for data, input data.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-37 653X User Manual Figure 3-34. Long Pulse Input T iming Diagram Parameter Description Minimum Maximum Input Parameters t rr* REQ puls.
Chapter 3 T iming Diagrams 653X User Manual 3-38 ni.com Note W ith REQ edge latching enabled (default) REQ edge determines when data will be latched. Input data valid has to be held before acti ve going REQ edge a minimum of t rdi ns. W ith REQ edge disabl ed, it has t o be held t ad i after the next acti ve going A CK signal edge occurs.
Chapter 3 T iming Diagrams © National Instruments Corporation 3-39 653X User Manual Figure 3-36. Long Pulse Output State Machin e W ait For Data W ait For REQ Programmab le Delay Programmab le Delay W ait For REQ When REQ Asser ted When 6533 Device has data to output, output data.
Chapter 3 T iming Diagrams 653X User Manual 3-40 ni.com Figure 3-37. Long Pulse Output Timing Diagram Note W ith REQ edge latching disabled (default), output data valid will hold t rdo ns after the REQ edge with REQ edge latching enabled, that data will be held for at most t rdo ns after the REQ edge deasserts.
© National Instruments Corporation A-1 653X User Manual A Specifications This appendix list s features and specifications for your 653 X devices and the PCI/PXI-7030/6533 de v ice. Specifications are typical at 25 ° C unless otherwise noted. Digital I/O Number of channels .
Appendix A Specifications 653X User Manual A-2 ni.com Absolute max input voltage rang e .......... – 0.3 to 5 V Power-on state for outputs ......................Hi gh-impedance, pulled up or down (selectable) Data transfers (all devices except DAQCard) .
Appendix A Specifications © National Instruments Corporation A-3 653X User Manual Pattern I/O Direction.................... ......................... .... Input or output Maximum sample rate (in ternally timed, for small transfers 1 ) .............. .
Appendix A Specifications 653X User Manual A-4 ni.com Power Requirement +5 VDC (±5%) (with light output load) ..................... ...... 500 mA Power A vailable at I/O Connector PCI-DIO-32HS, PX I-6533, AT-DIO-32HS, PCI-6534, and PXI-6534 .........
Appendix A Specifications © National Instruments Corporation A-5 653X User Manual Nonoperational random vibratio n (PXI only) ......................... .............. ....... 5 to 500 Hz, 2.5 g rms , 3 axes Note Random vibration profiles were de veloped in accordance with MIL- T-28800E and MIL-STD-810E Method 514.
© National Instruments Corporation B-1 653X User Manual B Using PXI with CompactPCI Y ou can use your PXI-653 X de vice as a plug-in de vice in a standard CompactPCI chassis, but you will not be able to access PXI-specifi c functions, such as R TSI bus features detailed in the PXI Specification , rev.
© National Instruments Corporation C-1 653X User Manual C Connecting Signals with Accessories This appendix describes ho w to connect signals to your 653 X device. Use the first part of the appendix to acquaint yourself with the de vice control signals.
Appendix C Connecting Signals with Accessories 653X User Manual C-2 ni.com Making 68-Pin Signal Connections Caution Do not make connections that e x ceed any of the maximum input or output ratings on the 653 X , listed in Appendix A, Specifications . This includes conn ecting any po wer signals to ground and vice versa.
Appendix C Connecting Signals with Accessories © National Instruments Corporation C-3 653X User Manual Note In Figure C-1, the * indicates that you can rev erse the pin assignments of the A CK1 (ST AR TTIG1) and REQ1 pins, or the A CK2 (ST AR TTIG2) an d REQ2 pins.
Appendix C Connecting Signals with Accessories 653X User Manual C-4 ni.com Table C-3. Signal Descriptions Pins Signal Name Signal Ty p e Signal Descr iption Based on Mode Used 2, 9 REQ<1..2> Control Group 1 and group 2 requ est lines Handshaking I/O — Request.
Appendix C Connecting Signals with Accessories © National Instruments Corporation C-5 653X User Manual 23, 57 – 58, 25 – 26, 60 – 61, 28 DIOC<0..7> Data Port C bidirectional data lines Port C is referred to as port number 2 in software. DIOC7 is the MSB; DIOC0 is the LSB.
Appendix C Connecting Signals with Accessories 653X User Manual C-6 ni.com Making 50-Pin Signal Connections Figure C-2. 68-to-50-Pin Ad apter Pin Assignments Use T able C-4 to f ind the accessories designed to connect to your 653 X device.
Appendix C Connecting Signals with Accessories © National Instruments Corporation C-7 653X User Manual T o use your 653 X device with cables, signal conditioning modules, and other accessories that require an A T-DIO-32F pinout, use the R6850-D1, an optional 68-to-50-pin device adapter .
© National Instruments Corporation D-1 653X User Manual D Hardware Considerations This appendix cov ers se veral hardw are considerations for your 653 X device. As an adv anced user , you can use these sections to understand ho w the hardware works i n your 653 X device.
Appendix D Hardware Considerations 653X User Manual D-2 ni.com Figure D-2. DAQCard-6533 fo r PCMCIA Block Diagram DAQ-DIO Counters and Timers DMA/ Interrupt Requests Handshaking and Control Data Latch.
Appendix D Hardwar e Considerations © National Instruments Corporation D-3 653X User Manual Figure D-3. PCI-DIO-32HS, PCI/PXI-7030/6533, and PXI-65 33 Block Diagram DAQ-DIO Counters and Timers DMA/ I.
Appendix D Hardware Considerations 653X User Manual D-4 ni.com Figure D-4. PCI/PXI-6534 Block Diagram Handshaking and Control Request Processing Data Latches and Drives Internal FIFOs Bus Interface DM.
Appendix D Hardwar e Considerations © National Instruments Corporation D-5 653X User Manual Power -On State When the computer is first turned on, all lines are configured for input and in the high-impedance state. By default, the data and control lines in the 653 X device are pulled do wn, ev en if the CPULL and DPULL are disconnected.
Appendix D Hardware Considerations 653X User Manual D-6 ni.com Y ou can connect the +5 V pin to the CPULL and DPULL pins to control the bias of the 653 X device control and data lines, as described in the Power-On State section earlier in this chapter .
Appendix D Hardwar e Considerations © National Instruments Corporation D-7 653X User Manual Using the Schottky-Diode T ermination Scheme Y ou can terminate a cable that acts as a uniform transmission line in sev eral ways .
Appendix D Hardware Considerations 653X User Manual D-8 ni.com Figure D-5. T ransmission Line T erminations Note Run the signal lines through special metal conduits to protect them from magnetic fields caused b y electric motors, welding equipment, break ers, or transformers.
Appendix D Hardwar e Considerations © National Instruments Corporation D-9 653X User Manual There is no specific cutof f frequency at which termination becomes necessary . Note A purely resisti ve termination scheme is not recommended because of the current drawn b y the termination resistors.
Appendix D Hardware Considerations 653X User Manual D-10 ni.com R TSI and PXI T rigger Bus Interfaces You can use the seven bidirectional RTSI lines on the RTSI bus to share signals between devices. Use the RTSI bus interface to synchronize multiple cards or change control signals wit h multiple devices.
Appendix D Hardwar e Considerations © National Instruments Corporation D-11 653X User Manual R TSI and PXI Bus T riggers The sev en R TSI lines on the R TSI bus provide a v ery flexible interconnection scheme for any de vice sharing the R TSI o r PXI-trigger bus.
© National Instruments Corporation E-1 653X User Manual E Optimizing Y our T ransfer Rates Use this appendix to determi ne the maximum transfer rate fo r your device, optimize transfer rates, and to see e xample benchmark results.
Appendix E Optimizing Y our T r ansfer Rates 653X User Manual E-2 ni.com Obtaining the Fastest T ransfer Rates T o achie ve the highest transfer r ates possible, consider the following: • Burst mode is the fastest handshaking protocol. Y ou can further increase speed by using short cables.
Appendix E Optimizing Y our T ransfer Rates © National Instruments Corporation E-3 653X User Manual Interpreting Benchmark Results Use benchmark results to get a general idea of what transfer rates to expect for an application. Since these results are system dependent, they are not to be used as specif ications.
Appendix E Optimizing Y our T r ansfer Rates 653X User Manual E-4 ni.com A T -DIO-32HS The following benchmarks are results using a Dell Dimension XPS, 600 MHz, PIII, and W indows 98 SE. PCI-DIO-32HS The following benchmarks are results using a Gate way 550 MHz PIII, 128 MB RAM, and W indows 98 SE.
Appendix E Optimizing Y our T ransfer Rates © National Instruments Corporation E-5 653X User Manual PXI-6533 The following benchmarks are results using a PXI-8170, 450 MHz PIII, and W indows 98. Pattern I/O – Continuous Retransmit Output 4 1. 81 1.
Appendix E Optimizing Y our T r ansfer Rates 653X User Manual E-6 ni.com DAQCard-6533 for PCMCIA The following benchmarks are results using a PXI-8170, 450 MHz PIII, and W indows 98. PCI-6534 The following benchmarks are results using a Dell Dimension XPS T600r , 600 MHz PIII, 128 MB RAM, and W indows 98 SE.
Appendix E Optimizing Y our T ransfer Rates © National Instruments Corporation E-7 653X User Manual PXI-6534 The following benchmarks are results using a PXI-8170, 450 MHz PIII, and W indows 98.
Appendix E Optimizing Y our T r ansfer Rates 653X User Manual E-8 ni.com PCI-7030/6533 with LabVIEW R T The follo wing benchmarks are results using a 133 MHz AMD 486DX5 class processor , and the real-time operating system running on LabVIEW R T .
Appendix E Optimizing Y our T ransfer Rates © National Instruments Corporation E-9 653X User Manual Pattern I/O – Continuous Retransmit Output 2. 50 1.25 1.25 Burst Protocol – Continuous Input 19.98 19.97 19.97 Output 19.97 17.72 8.60 Table E-10.
© National Instruments Corporation F-1 653X User Manual F T echnical Support Resources W eb Support National Instruments W eb support is your first stop for help in solving installation, configuration, and application pro blems and quest ions.
Appendix F T echnical Support Resources 653X User Manual F-2 ni.com W orldwide Support National Instruments has of fi ces located around the world to help address your support needs. Y ou can access our branch of f i ce W eb sites from the W orldwide Of fices section of ni.
© National Instruments Corporation G-1 653X User Manual Glossar y Pref ix Meaning V alue k- kilo- 10 3 µ- micro- 10 – 6 m- milli- 10 – 3 M- me ga- 10 6 n- nano- 10 – 9 Numbers/Symbols ° degre.
Glossary 653X User Manual G-2 ni.com A Aa m p s A CK acknowledge — handshaking signal dri ven b y the 653 X device, indicating that it is ready to transfer data ADE Application Development En vironm.
Glossary © National Instruments Corporation G-3 653X User Manual channel Pin or wire lead to which you apply or from wh ich you read the analog or digital signal. For digital signals, you group channels to form port s. Ports usually consist of either four or eight digital channels.
Glossary 653X User Manual G-4 ni.com default setting A default parameter v alue recorded in the driv er . In many cases, the default input of a control is a certain v alue (often 0) that means use the current default setting . de v ice A plug-in data acquisition board, card, or pad that can contain multiple channels and con version de vices.
Glossary © National Instruments Corporation G-5 653X User Manual G group A collection of one, two, or four ports and an associated tim ing controller . All buf fered operations must be performe d on groups. H handshaking I/O Data-transfer mode in which the 653 X de vice engages in a two-way communication with the peripheral device.
Glossary 653X User Manual G-6 ni.com M MM e g a — the standard metri c prefix for 1 million or 10 6 , when used with units of measure such as v olts and hertz Measurement & Automation Expl orer .
Glossary © National Instruments Corporation G-7 653X User Manual pretrigger acquiring data that occurs before a trigger propagation delay the amount of time required for a signal to pass through a ci.
Glossary 653X User Manual G-8 ni.com sample rate the numb er of samples a system takes ov er a giv en time period, usu ally expressed in samples per second software trigger a programmed ev ent that tr.
Glossary © National Instruments Corporation G-9 653X User Manual W wired-OR output driv er th at dri ves its output pin to 0 V for logic low , b ut tri-states the pin (puts the pin in the high-impeda.
© National Instruments Corporation I-1 653X User Manual Index Numbers +5 V signal, description (table), C-5 653 X devices. See also hardware; specific device name.
Index 653X User Manual I-2 ni.com long-pulse protocol input handshaking sequence (figure), 3-35 input state machine (figure), 3-36 input timing diagram (figure), 3-37 output handshaking sequence (figu.
Index © National Instruments Corporation I-3 653X User Manual DMA or interrupt transfers, 2-31 finite, 2-30 overview, 2-26 port and timing controller combi nations (table), 2-26 to 2-27 programming, .
Index 653X User Manual I-4 ni.com rate of data transfer, 2-18 to 2-19 triggering data transf er, 2-19 to 2-21 width of data to transfer, 2-17 delay, programmable, handshaking protocol, 2-8 to 2-9 digital I/O specifications, A-1 to A-2 digital lines. See static digi tal lines.
Index © National Instruments Corporation I-5 653X User Manual output handshaking sequence (figure), 3-15 output state machine (figure), 3-16 output timing diagram (fi gure), 3-17 asynchronous protoco.
Index 653X User Manual I-6 ni.com board, RTSI, and PXI bus clocks, D-10 RTSI and PXI bus triggers, D-11 sink and source current, D-9 I initialization ord er, handshaking I/O, 2-11 to 2-12 installation.
Index © National Instruments Corporation I-7 653X User Manual O optimizing transfer rates, E-1 to E-9 benchmark results, E-3 to E-9 AT-DIO-32HS (t able), E-4 DAQCard-6533 for PCMC IA (table), E-6 P C.
Index 653X User Manual I-8 ni.com transfer example (figure), 3-6 description (table), C-4 frequency selection for programmable delay, 2-8 to 2-9 handshaking I/O and pattern I/O (table), C-1 signal dir.
Index © National Instruments Corporation I-9 653X User Manual output timing diagram (fi gure), 3-17 overview, 3-12 to 3-13 burst input timing diagrams default input timing di agram (figure), 3-8 PCLK.
Index 653X User Manual I -10 ni.com pin assignme nts (figure) , C-6 68-pin signal connections, C-2 to C-3 accessories (table), C-3 pin assignme nts (figure) , C-2 change detection, 2-31 control signal.
Index © National Instruments Corporation I-11 653X User Manual stop trigger change detection, 2-28 pattern I/O, 2-19 to 2-20 system integration, by National Instrume nts, F-1 T technical support resources, F-1 to F-2 terminating cables. See cable selection and termination.
Index 653X User Manual I -12 ni.com W waveforms. See pattern I/O. Web support from National Instruments, F-1 wired-OR output, unstrobed I/O, 2-2 to 2-3 Worldwide technical support, F-2.
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