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AT -LA500 User Manual

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Active Technologies S.r.l.

www.activetechnologies.it
AT-LA500

USB Logic Analyzer

USER MANUAL
R
3.4 – JUNE 2009
1
ELEASE

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  • Page 1: Active Technologies S.r.l

    Active Technologies S.r.l. www.activetechnologies.it AT-LA500 USB Logic Analyzer USER MANUAL 3.4 – JUNE 2009 ELEASE...

  • Page 3: Table Of Contents

    OFTWARE LOADING ........................... 15 UIDE TO THE FIRST ACQUISITION Probe connection ................................ 15 Software loading ................................. 15 Create a Workspace ..............................15 AT-LA500 SOFTWARE ..............................19 ..................................20 ENU BAR File ....................................20 View ..................................... 20 Tools .................................... 20 Window ..................................20 Help .....................................
  • Page 4 Create a State Listing window ........................... 56 Cursors ..................................57 Browse the State Listing window and export data ..................... 58 Search ..................................59 Serial Protocol Interpreter ............................60 AT-XSS EXPANSION BUS .............................. 60 DIGITAL PATTERN GENERATOR-SAMPLER (OPTIONAL) ................62 ............................... 63 ROBES DESCRIPTION ..............................64...
  • Page 5 AT-LA500 – U SER MANUAL ONTENTS Waveform View Settings ............................. 83 Cursors ..................................85 Go To a Selected Target ............................. 86 Search ..................................86 Waveform Sequencer Editor ............................88 DATA VISUALIZATION ..............................91 ................................91 AVEFORM Create a Waveform View window ..........................91 .................................

  • Page 7: Introduction

    Introduction Overview AT-LA is an instrument able to acquire digital data through 36 channels, divided in 4 banks of 9 channels each and to visualize their time behavior thanks to the dedicated software. AT-LA is available in different configurations, depending on the maximum available memory (varying from 2M to 4M samples).
  • Page 8 The operating principle of a Logic Analyzer can then be schematically represented as: Note: This manual refers to a single AT Logic Analyzer. However, since up to 8 AT-LA can be connected together to increase the number of examined channels up to 288.

  • Page 9: Getting Started

    AT-LA500 – U SER MANUAL Getting started Hardware requirements Minimum system requirements • Microsoft™ Windows® 2000 or XP operating system; • Pentium® III processor; • 128 MBytes RAM; • 100 MBytes available on hard disk for software installation; • 800x600 video resolution;...

  • Page 10: Instrument Description

    Ch. 35 - 18 Ch. 17 - 0 AT -LA500 Status 50 0 MS/s USB Logi c Anal y zer Pod B Pod A AT-LA500 – Front view TRIGGER OUT AT EXPANSION BUS TRIGGER IN POWER DC IN AT-LA500 – Rear view 3.4 –...
  • Page 11 • Power connector: connector for the external power supply • Power-on switch; • USB connector; • AT expansion bus connector: connector for the AT-expansion bus, a dedicated cable used to connect several instruments and also to connect an external device, like an oscilloscope, (with optionally AT-scope card);...

  • Page 12: Probes Description

    AT-LA500 – U SER MANUAL Probes description Probes have to be connected to the testing board by means of opportune connectors. Regarding the probes connected to the Pod A the correspondence between the pins and the number of channels is reported in the following tables: Bank 0 (Ch.

  • Page 13: Instrument Disconnection

    Probe connection Data acquisition requires at least Data acquisition requires at least Data acquisition requires at least Data acquisition requires at least one probe connected to one probe connected to one probe connected to the he instrument. Probes can be plugged instrument.

  • Page 14: Software Loading

    Analyzer is switched OFF or if it is non connected to the PC, the software DEMO version will be loaded. Once the software has been loaded, the AT-LA Start Page window appears. At this point a new project can be created, or an existing project can be opened. If available, the list of the recent projects appears on the left of the main window.

  • Page 15: Guide To The First Acquisition

    AT-LA500 – U SER MANUAL SER MANUAL Guide to the first acq Guide to the first acq Guide to the first acq Guide to the first acquisition uisition The procedure required to perform a data acquisition The procedure required to perform a data acquisition...
  • Page 16 0 of the AT correspondence of the channel 0 of the AT correspondence of the channel 0 of the AT-LA500 with the signal “CLOCK” defined at LA500 with the signal “CLOCK” defined at LA500 with the signal “CLOCK” defined at LA500 with the signal “CLOCK”...
  • Page 17 AT-LA500 – U SER MANUAL • In the Sampling tab, choose the better Sample Rate (i.e. 5x the frequency of the signal to acquire); 3.4 – JUNE 2009 ELEASE...
  • Page 18 AT the AT-LA500; • In the Probes tab you can set the threshold of the logic levels detected by the AT In the Probes tab you can set the threshold of the logic levels detected by the AT In the Probes tab you can set the threshold of the logic levels detected by the AT...

  • Page 19: At-La500 Software

    AT-LA500 – U SER MANUAL AT-LA500 Software AT-LA Software allows controlling all settings related to the instrument and to the open acquisition windows. Closing the AT-LA Navigator means to exit from the instrument control program. 3.4 – JUNE 2009 ELEASE...

  • Page 20: Menu Bar

    View • AT-LA Solution Explorer: it shows the project explorer tree; • AT-LA Start Page: it shows the Start Page, with the recent projects list. Tools • Pod Status…: it opens the Pod Status Reader window, that shows the current logic status of all the inputs;...

  • Page 21: Tool Bar

    The status bar The status bar The status bar on the bottom side of the main window shows the status of the AT on the bottom side of the main window shows the status of the AT on the bottom side of the main window shows the status of the AT...

  • Page 22: Solution Explorer

    This panel allows defining a list of signals or bus and choosing their correspondence to the channels of the AT-LA500. Only the signals defined in this panel can be viewed in the Waveform View or State Listing windows. The right table shows all the AT-LA500 channels and the colors of the correspondent wires.

  • Page 23: Adding A Signal

    AT-LA500 – U SER MANUAL SER MANUAL Note Note: When a signal protocol trigger is selected, their standard signals are automatically added to When a signal protocol trigger is selected, their standard signals are automatically added to When a signal protocol trigger is selected, their standard signals are automatically added to...

  • Page 24: Editing A Signal Or Bus Name

    If more than one instrument are connected together by means of the AT-XSS Expansion Bus, the user can select the instrument where to set the trigger by using the menu ring AT-XSS Bus Master. Using the radio buttons Logic Analyzer Trigger Master and Oscilloscope Trigger Master it’s possible to select the trigger signal source, if an oscilloscope is present and connected;...
  • Page 25 AT-LA500 – U SER MANUAL Note: For a correct acquisition, the sampling frequency should be at least 4 or 5 times higher than the maximum frequency of the signals to be acquired. 3.4 – JUNE 2009 ELEASE...

  • Page 26: State Analysis

    AT-LA500 – U SER MANUAL State Analysis When this sampling mode is selected, data acquisition is triggered by a specific event. If a clock signal is present in the system under test, this sampling mode allows synchronizing the data acquired by AT-LA500.
  • Page 27 Any edge. Each sample will be acquired when at least one condition is verified on the signal edges and at least Each sample will be acquired when at least one condition is verified on the signal edges and at least...

  • Page 28: Normal And State Analysis Trigger

    To add a trigger level click on To add a trigger level click on : a new trigger level will be added at the end of the list. a new trigger level will be added at the end of the list.

  • Page 29: Edges And Levels

    SER MANUAL Note Note: Whenever the acquisition starts the Logic Analyzer waits for the conditions at Level0. henever the acquisition starts the Logic Analyzer waits for the conditions at Level0. henever the acquisition starts the Logic Analyzer waits for the conditions at Level0.

  • Page 30: Relationship Between Trigger Conditions

    The Pretrigger control allows specifying the position in which the trigger event will be located with respect to the AT-LA500 memory. If the most meaningful data must be sampled after the trigger detection, low pretrigger percentage must be selected. On the contrary, if signal evolutions before trigger event must be analyzed, a high pretrigger percentage is more suitable.
  • Page 31 AT-LA500 – U SER MANUAL Note: The PretriggerHS can only assume values in the range 10% - 90%. 3.4 – JUNE 2009 ELEASE...

  • Page 32: I 2 C Trigger

    Probes tab of the Settings window; • Connect at least one grounded pin (white wires) to the ground of the board to test; • Connect the Channel 0 (black wire) to the SDA line of the I C bus to test;...
  • Page 33 • OR: the AT : the AT-LA500 trigger LA500 triggers when at least one of the when at least one of the when at least one of the entered address conditions address conditions address conditions is verified. verified.

  • Page 34: Address&Data

    When this option is selected, the AT When this option is selected, the AT When this option is selected, the AT-LA500 triggers when a on the bus is detected the selected LA500 triggers when a on the bus is detected the selected...

  • Page 35: Pretrigger

    • Sequence: the AT-LA500 triggers when the address condition and all the entered data conditions are verified in the specified order; • OR: the AT-LA500 triggers when the address condition and at least one of the entered data conditions are verified.

  • Page 36: Spi/ Wire Trigger

    SER MANUAL SPI/ Wire Trigger In this mode, the AT-LA500 can trigger when a selected event occurs on a SPI (Serial Peripheral Interface) or Wire bus. The AT-LA500 can trigger on SPI operations addressing up to 8 different peripherals by monitoring the related SSn (Slave Select) signals. Furthermore, the acquired data are decoded and shown in the Waveform View and State Listing windows.

  • Page 37: Spi Trigger Options

    For example, if the SSn1 and SSn2 box are checked, the AT have to be enabled. For example, if the SSn1 and SSn2 box are checked, the AT have to be enabled. For example, if the SSn1 and SSn2 box are checked, the AT-LA500 will trigger LA500 will trigger...

  • Page 38: Uart/Rs232 Trigger

    SER MANUAL UART/RS232 Trigger In this mode, the AT-LA500 can trigger when a selected event occurs on a UART (Universal Asynchronous Receiver and Transmitter) bus. Furthermore, the acquired data are decoded and shown in the Waveform View and State Listing windows.

  • Page 39: Uart Trigger Options

    • OR: the AT : the AT-LA500 triggers when LA500 triggers when LA500 triggers when the address condition and at least one of the the address condition and at least one of the the address condition and at least one of the...

  • Page 40: Probes

    Probes This tab allows setting the threshold levels for each bank (only for probes supporting this option). If more than one AT-LA500 are connected used, the AT-LA Number menu ring allows to select the instrument to set. The threshold for each bank can be set manually by writing its value in V in the corresponding control.
  • Page 41 AT-LA500 – U SER MANUAL • ECL (-1.3V) • PECL (3.7V) • LVPECL (2V) • LVCMOS 1,5 (750mV) • LVCMOS 1,8 (900mV) • LVCMOS 2,5 (1.25V) • LVCMOS 3,3 (1.65V) • LVDS (100mV) The appropriate value can be selected by means of the Threshold Presets menu ring and then the Set all key must be pressed.

  • Page 42: Data Acquisition

    AT-LA500 – U SER MANUAL SER MANUAL Data Acquisition Data Acquisition Data Acquisition Data Acquisition Channel Status Channel Status Channel Status Once one or more probes have been connected to the system u Once one or more probes have been connected to the system u...

  • Page 43: Start A Data Acquisition

    Data acquisition may be stopped at any time by Data acquisition may be stopped at any time by Data acquisition may be stopped at any time by Data acquisition may be stopped at any time by clicking on button button.
  • Page 44 AT-LA500 – U SER MANUAL • Connect as many grounds as possible to the system under test. All grounds are connected together, therefore it is important to check all ground connections to avoid short circuits; • Once probes have been connected, check the input status on the Channels Status window to verify that the visualized behavior corresponds to the expected one;...

  • Page 45: Data Visualization

    TriggerOUT output. If the AT-LA500 is set to receive the Trigger pulse from the oscilloscope, the Trigger condition must be set manually, if AT-LA500 is the Trigger master, the oscilloscope settings will be set by the AT-LA500 software automatically.

  • Page 46: Waveform View

    AT-LA500 – U SER MANUAL Waveform View Create a Waveform View window To open the Waveform view, double click on the icon in the Solution Explorer. When a new acquisition is complete, and the Waveform View window is not yet open, a Signal Selection window will appear to select which signals or groups of signals among those that have been acquired are to be visualized, then the Waveform View window will be shown.
  • Page 47 To add all signals at a time To add all signals at a time To add all signals at a time, just click on , just click on To remove a signal from the visualization list, select it on the right side table and click on...

  • Page 48: Zoom

    (the cursors properties are described in the position of the master cursor (the cursors properties are described in the position of the master cursor (the cursors properties are described in the...

  • Page 49: Graph Property

    AT-LA500 – U SER MANUAL SER MANUAL Graph Property Graph Property Graph Property To change the graph properties, click on the To change the graph properties, click on the To change the graph properties, click on the To change the graph properties, click on the To change the graph properties, click on the icon.

  • Page 50: Cursors

    AT-LA500 – U SER MANUAL In the Signals Property tab it is possible to change the color of a single signal, the representation of the value of a bus, the transition visualization mode, the space between signals and the height of all signals.

  • Page 51: Go To A Selected Target

    High Speed is moved at the begin of the High Speed is moved at the begin of the High Speed...
  • Page 52 SER MANUAL SER MANUAL the master cursor master cursor is moved at the end of the analog is moved at the end of the analog is moved at the end of the analog is moved at the end of the analog...

  • Page 53: Search

    AT-LA500 – U SER MANUAL SER MANUAL Search Search In the Waveform View In the Waveform View In the Waveform View i it is possible to search a value related to a bus or, for a single signal, a t is possible to search a value related to a bus or, for a single signal, a...
  • Page 54 AT-LA500 – U SER MANUAL SER MANUAL The Compare Compare menu ring allows menu ring allows to select select between between the search option: the search option: Find if equal Find if equal; • = Find if not equal Find if not equal;...

  • Page 55: Serial Protocol Interpreter

    AT-LA500 – U SER MANUAL Serial Protocol Interpreter When a Serial Protocol trigger is selected, the serial bus acquired data are visualized and their interpretation is indicated in the Waveform View window: coloured rectangles will show where the bus operations begin and end; a string will specify which operation is represented.

  • Page 56: State Listing

    To add all signals at a time, just click on To add all signals at a time, just click on To add all signals at a time, just click on...

  • Page 57: Cursors

    Signals can be added in (removed from) the Signals can be added in (removed from) the State Listing Listing window at any time window at any time window at any time by clicking on by clicking on icon in the icon in the State Listing...

  • Page 58: Browse The State Listing Window And Export Data

    AT-LA500 – U SER MANUAL master cursor. Furthermore, the master cursor is moved automatically during a data search operation to show results. It is possible to operate with cursors by clicking with the right mouse button on the cursor list and...

  • Page 59: Search

    AT-LA500 – U SER MANUAL SER MANUAL rows and column have to be rows and column have to be rows and column have to be rows and column have to be exported. exported. Note: Note: Exporting the entire acquisition may require a long time to be...

  • Page 60: Serial Protocol Interpreter

    The software controls all AT oftware controls all AT oftware controls all AT-LA500 without any additional operation by the user. The presence LA500 without any additional operation by the user. The presence LA500 without any additional operation by the user. The presence LA500 without any additional operation by the user.
  • Page 61 AT-LA500 – U SER MANUAL Note: For a better acquisition it is suggested to connect all AT-LA500 in consecutive slots of the AT-XSS expansion bus and to set the trigger event on an AT-LA500 positioned in an intermediate location. 3.4 – JUNE 2009...

  • Page 62: Digital Pattern Generator-Sampler (Optional)

    AT-LA500 – U SER MANUAL Digital Pattern Generator-Sampler (Optional) AT-LA500 can be configured to work as a powerful Digital Pattern Generator-Sampler (optional). In this working mode AT-LA500 provides the capability to emulate standard serial or parallel bus transitions custom digital...

  • Page 63: Probes Description

    Probes have to be connected to the testing board by means of opportune connectors. WARNING: use Passive Probes only with AT-LA500 Digital Pattern Generator. Regarding the probes connected to the Pod A the correspondence between the pins and the number of channels is reported in the following tables: Bank 0 (Ch.

  • Page 64: Signals Description

    Ch.35 Ch.34 Ch.33 Ch.32 Ch.31 Ch.30 Ch.29 Ch.28 Ch.27 n.c. n.c. n.c. n.c. n.c. n.c. n.c. Signals Description The signals available on AT-LA500 Digital Pattern Generator-Sampler connectors are reported below. Signal name Type Description Digital ground Ch[17..0] Input Output Digital pattern generator bidirectional pins bank 0 Ch[35..0]...

  • Page 65: Command Bar

    AT-LA500 – U SER MANUAL Command Bar The Command Bar allows managing in a simple and fast way the waveform generation for all enabled channels. The available commands are: Upload the digital waveforms and the sequencer instructions. Note: if the user make changes on Digital Editor form or on the Sequencer form, the upload button has to be pressed to load the changes on the instrument.

  • Page 66: Tree Functionalities

    Settings, Digital Editor, Waveform View, State Listing, Signals Definition, Waveform Sequencer. Settings The Settings panel allows configuring the AT-LA500 for a correct pattern generation. It is divided in three tabs: General, Triggering, and Clock Generation General...

  • Page 67: Serializer (Sdk Only)

    AT-LA500 – U SER MANUAL Write Mode Memory One shot: the data are written until the end of the memory is reached Cyclic Memory: the memory is written in a cyclic mode and data can be overwritten when the end of memory is reached.
  • Page 68 Serial Mode if VECTOR(32) is '1', the Serializer starts to serialize the VECTORS stream, if it is '0' the Serializer doesn't serialize the stream (please refer to SDK manual for further informations). Note: the Serializer module is not active in the present AT-LA500 software version. Serialization can be performed by using of the SDK application.

  • Page 69: Clock Generator

    AT-LA500 – U SER MANUAL Clock Generator Clock Generator module allows generating a clock signal with a frequency up to 125 MHz. The clock will be generated on Ch35. It is also possible to combine the clock with the VECTOR(34) signal using the strobe function. The following options are available: NOP,OR,AND,XOR,NOT, NOR, NAND, XNOR.

  • Page 70: Triggering

    AT-XSS bus (SDK mode only). XSS bus (SDK mode only).

  • Page 71: Conditions On Edges

    AT-LA500 – U SER MANUAL Sets a bus at the hexadecimal value entered in the adiacent control box. To set the state on a channel, click on the row correspondent to the channel to be set in the table on the right side of the window (note that the column Signal Names contains the user defined names for the signals to acquire).

  • Page 72: Relationship Between Trigger Conditions

    BEFORE A trigger condition occurs when an edge condition has been Level detected at least once before that on logic levels Edge AFTER Level A trigger condition occurs when an edge condition has been detected at least once after that on logic levels...

  • Page 73: Signal Definition

    The right table shows all the AT The right table shows all the AT The right table shows all the AT The right table shows all the AT-LA500 LA500 channels and the colors of the correspondent wires. channels and the colors of the correspondent wires.

  • Page 74: Remove A Signal Or A Bus

    AT-LA500 – U SER MANUAL SER MANUAL Both these methods can be used also to change any previously defined correspondence. Both these methods can be used also to change any previously defined correspondence. Both these methods can be used also to change any previously defined correspondence.

  • Page 75: Strobe

    (generation mode), if In the direction is input (acquisition mode) Extended Trigger Extended trigger input enabled or disabled Write RAM Active high signal. If high (Enable), the AT-LA500 Pattern stores the current channel value in the SRAM memory. 3.4 – JUNE 2009 ELEASE...

  • Page 76: Digital Editor

    To add all signals at a time, just click on To add all signals at a time, just click on To add all signals at a time, just click on...

  • Page 77: Digital Editor Window

    To remove all signal at a time, just click on To remove all signal at a time, just click on To remove all signal at a time, just click on...

  • Page 78: Zoom

    On the right of every signal or bus name, a number indicates the value that this signal or bus assumes at the time position of the master cursor (the cursors properties are described in the assumes at the time position of the master cursor (the cursors properties are described in the...
  • Page 79 AT-LA500 – U SER MANUAL SER MANUAL Analog Zoom out. Click to zoom out the selected analog waveform (if Analog Zoom out. Click to zoom out the selected analog waveform (if Analog Zoom out. Click to zoom out the selected analog waveform (if Analog Zoom out.

  • Page 80: Digital Editor Window Toolbar

    AT-LA500 – U SER MANUAL Digital Editor Window Toolbar Several commands allow operating on the waveforms. In particular: Signal/bus to 0 Signal/bus to 1 Signal/bus to High Impedance Signal/bus to Arbitrary Value. Arbitrary Value allows overwriting a node value over the selected waveform, waveform interval, or across one or more nodes or groups.
  • Page 81 Random node values by every grid interval, every specified time or at fixed intervals can be generated. Import Data. Import waveforms from a .csv file. The...
  • Page 82 AT-LA500 – U SER MANUAL and 2 is the high impedance state (HiZ). The imported data will be visualized on the Digital Editor Window and on the Data Editor, but only data corresponding to bus/signals added on the Digital Editor Window will be imported.

  • Page 83: Data Editor

    AT-LA500 – U SER MANUAL SER MANUAL Data Editor Data Editor Data Editor The Data Editor Data Editor can be used be used to edit to edit signal/bus values signal/bus values in numerical format. in numerical format. in numerical format.
  • Page 84 AT-LA500 – U SER MANUAL In the Graph property tab it is possible to change the graph background color by clicking on the Background Color box. By clicking the Major Grid and the Minor Grid switches it is possible to show or hide the vertical grids and to choose their colors.

  • Page 85: Cursors

    AT-LA500 – U SER MANUAL SER MANUAL Note: Note: The minimum All Signals Height value is 20. The minimum All Signals Height value is 20. The minimum All Signals Height value is 20. The minimum All Signals Height value is 20.

  • Page 86: Go To A Selected Target

    the...
  • Page 87 AT-LA500 – U SER MANUAL SER MANUAL In the In the Search Search list, all defined signals and bus (also the High Speed signals) list, all defined signals and bus (also the High Speed signals) list, all defined signals and bus (also the High Speed signals)

  • Page 88: Waveform Sequencer Editor

    The sequencer instructions allow to: The sequencer instructions allow to: • Repeat vectors stored inside the vector memory at each of several addresses Repeat vectors stored inside the vector memory at each of several addresses Repeat vectors stored inside the vector memory at each of several addresses...
  • Page 89 AT-LA500 – U SER MANUAL Operation that NOP instruction can be repeated from 1 to 65536 times) . Loop Mode: NO LOOP, LOOP BEGIN (it marks the first instruction of a loop), LOOP END (it marks the last instruction of a loop).
  • Page 90 AT-LA500 – U SER MANUAL REPEAT WAVEFORM: the generated vectors are asynchronous respect to the clock generator signal SYNC REPEAT WAVEFORM: the generated vectors are synchronous respect to the clock generator signal. Sync signal can be delayed with Sync Delay...

  • Page 91: Data Visualization

    To add all signals at a time, just click on To add all signals at a time, just click on...
  • Page 92 On the right of every signal or bus name, a number indicates the value that this signal or bus assu assumes at the time position of the master cursor (the cursors properties are described in the mes at the time position of the master cursor (the cursors properties are described in the...
  • Page 93 AT-LA500 – U AT-LA SER MANUAL NAVIGATOR Zoom, Cursors, Graph Property, Search toolbars are the same explained above for the Digital Editor, please see above for descriptions. 3.4 – JUNE 2009 ELEASE...

  • Page 94: State Listing

    To add all signals at a time, just click on To add all signals at a time, just click on To add all signals at a time, just click on...

  • Page 95: Cursors

    AT-LA500 – U AT-LA SER MANUAL SER MANUAL NAVIGATOR NAVIGATOR In the In the State Listing State Listing, a bus is indicated by a , a bus is indicated by a , a bus is indicated by a icon on the left of its name. It is possible to click on icon on the left of its name.
  • Page 96 AT-LA500 – U AT-LA SER MANUAL NAVIGATOR Add a cursor to the State Listing • Add marker Window; Remove the selected cursor; • Delete marker Set the selected cursor as the master; • Set master Delete all cursors but one;...

  • Page 97: Search

    AT-LA500 – U AT-LA SER MANUAL SER MANUAL NAVIGATOR NAVIGATOR Note: Exporting the entire acquisition may require a long time to be completed. Exporting the entire acquisition may require a long time to be completed. Exporting the entire acquisition may require a long time to be completed.
  • Page 98 AT-LA500 – U AT-LA SER MANUAL SER MANUAL NAVIGATOR NAVIGATOR Find if equal; Find if equal; Find if not equal; Find if not equal; > Find greater values (enabled only if a bus is Find greater values (enabled only if a bus is...

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