User Manual - Digital Circuit Design
Contents
1. Scope ay icon in the Scope tool box in the tool bar at the top of the window A new Scope Window will be opened showing all the signal names assigned to the Probe marking and as per their assigned number value in ascending order MM Simulation Data Trigger 17 15 Now run the simulation 16 All the signal information will start displaying in the Scope window 17 18 19 MM Digital Logic Design File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops VO Parts Simulation Scope Am T Ve eD D e H 00g IM Simulation 2 Data Trigger a34 Ill Iil iam You can save the scope data appearing in the scope by selecting menu Data gt Save Data You can also view the already save scoped datain the Scope by selecting menu Data gt View Saved Data x 899 y 283 You can also set that at which value the scope Start recording the data Stop recording the data and How many values it must record before stop recording and displaying the signal information These settings are available in the Trigger menu of the simulation window 18 11 Modules A circuit can easily be converted into reusable Module which can be used to build more complex circuits They behave like ICs in a circuit How to convert a circuit into a Module When a circuit is converted into a module the Button and LED presen2. It is recommended that instead of drawing long straight Track draw the track in a number of small segments by clicking at various places along the path of the Track to introduce drag able points in the Track which will be helpful to adjust the shape and alignment of the Track at later stage of circuit design m Digital Logic Design 128x4 Bit Memory Comp dwg o a File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops O Parts Simulation Scope I O II Power a eS Soe j B Qt RID DID D e m 0 amp m OE T s alrt al gt gt DD aeg OO Ff wo Oem 1 2 2 4 5 G 7 a TY 10 11 42 fa 45 16 17 1a n 1 2 a 24 za 1 1 1 E i 1 At 1 1 1 Ei i 1 z 1 1 i 1 E 1 1 1 Ocm Ny 128x4 Bit Memory Read and Write 2 cee Track Overlap ae and No Connection 6 4 oa a4 Wa Connection With Track 10 1 lt il gt Ready x 584 y 119 When a Track makes a connection with another Track a BLACK box will appear at the point of connection and if a Track just passes over another Track no such box will appear Component PIN Types There may be four different types are pins in a Component Input Used to receive datafrom other components Control These are Input Pins but trigger special operation inside the component Output Used to send data out of the component to other component TRI State These are Output Pin but they
3. 4 Advanced Input and Output Parts Keypad Ar This Keypad generates ASCII code for the characters shown on the pad There are 7 output pins which provide the corresponding ASCII value The pin numbers are from 0 6 from top to bottom The Sh key is Shift key and once pressed remained active until pressed again When pressed provides capital letters ASCII value The Enter or Return key is represented by n on the keypad Blank key acts as a Space Bar Display The Display acts as a CRT It gets 7 Bit ASCII value and displays it as decimal or ASCII character The input pins are numbered 0 6 from left to right The right most pin is an Enable pin which is active on Rising Edge RE and causes the value available on input pins to be displayed on the display During simulation by clicking on the Display a new window will appear as display This part has one important parameter named Data Type which is used to choose whether data is displayed as decimal value or ASCII character 5 Digital Oscilloscope Parts There are two parts associated with it Probe O iL It acts just like a probe for a digital osdlloscope It is connected to the point of observation through a track You may connect as many probes in a circuit as needed It is also recommended that you assign suitable values to Name and Number parameters of a probe The Name will appear as a signal name in the Oscilloscope display while
4. Number will set the position of the signal among other signals currently displayed in the oscilloscope Scope It appears as a separate window It visually displays the signal data at various points in a circuit as determined by the probes This window allows saving the displayed signal data and viewing the already stored data It also allows setting the starting and ending trigger point of the scope The scope can be set to store a predetermined number of observations from the start or from the start trigger point 6 Logic Gates and Flip Flops Logic Gates These are standard logic gates use to perform logic operations and built combinational circuits The TRI state gate is active HI Flip Flops These are four standard flip flops to design sequential circuits T and D flip flops have two more pins at the bottom for clear or reset and set the flip flop respectively These two pins are active HI and may be left un connected Each of these parts has three parameters may be defined by the user Name A Single word name of the part Number An integer Number Tpd Propagation delay 10 7 Power Parts There are two power parts Gnd and Vcc provided in this software These parts are only meant to provide logic LO and logic HI values respectively Ground js This is an input part and provides logic LO value It is connected at those places which requires constant logic LO value VCC a ige arier T
5. with this pin or Track because a You cannot connect two output pins to the same Track A Track connects to only one output pin at a time b When a pin is connected to a Track you cannot directly make any new connection to this pin but only to the track connected to this pin If you want to connect more than two pin first connect any two pins through a Track then connect all other pins to this Track by drawing Track between each Pin and the Track Track Drawing and Editing You may draw straight line Track or you may draw segmented Track During Track drawing if you left click the mouse the previous Track line will stop there and anew Track line will start from this point onward The click point becomes the drag point of the Track to change its shape In this way you can draw Track of any shape composed of a number of straight line segments 12 File Component Module Speed View Settings About x 338 y 213 If you want to align the Track Click the Ready button ht in the Operation Tool Box in the Tool Bar and then click the Track The Track will show all the drag able points in BLACK boxes on the Track which you can use to change the shape or alignment of the Track Use the mouse for dragging or just click the drag able point and it will change its color to RED on the Track and use arrow key to change the alignment of the Track File Component Module Speed View Settings About O Parts Simulation 0 4 13
6. 6 Mark and place the probe at all the places in the same way AW Digital Logic Design oc ote File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops I O Parts Simulation Scope VO II Power B r DD IDD Bees me O e HB TYP P DD Beef O00 8 es e em 1 2 a 4 A 6 7 a a 10 11 12 12 1a 15 16 17 1a 19 2 2 l l l f f l l l i 1 st ll v EKE Ii BE Component Probe x 69 y 8 16 10 11 12 13 14 Now click the Track ba icon in the Operation tool box in the tool bar at the top of the window is Move to the drawing area and the cursor shape will be changed to the track drawing tool w Drawing the track between the Probe marking and the monitoring places Connect all the Probe markings in the same way MW Digital Logic Design Saigon ex File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops O Parts Simulation Scope I O II Power eo Oi t RID iL IEE H AT Vii eoD D g L Suw o0 t 00T EB v 4 Al gt Ready x 112 y 177 Assign names to the Probe marking by using each Probe drop down menu By using the drop down menu of each Probe assign the Id number to each Probe marking according to the order in which you want them to appear in the Scope display Now click the
7. Digital Logic Design Version 1 0 7 11 2014 User Manual CONTENTS Application GUI Tool Bar Parts and their Function Basic Input and Output Parts Advanced Input and Output Parts Digital Oscilloscope Parts Logic Gates and Flip Flops Power Parts Track or Wire Simulation 10 Digital Scope 11 Modules 12 Components Parameters 13 Control Pins O NN OO U A WO N he 1 Application GUI MM Digital Logic Design lo amp ss File Component Module Speed View Settings About i File Operations Basic Gates r Derived Gates Flip Flops O Parts Simulation Scope VOll gt Power B l ri DDP Dp ms e m eo Tal gt e DD BA ef 00 E 7 a 9 11 12 a A 2 Tool Bar Menu Bar Tool Boxes Drawing Area gt x 7 y 149 t Application State 1 Message Information Area Mouse Coordinates f Status Bar The GUI can be customized by selecting or deselecting the options available in the View Menu Deselecting an item removes it from the GUI while selection makes it appear on the GUI The two options namely Component Name Display and Component Id Display enable the component Name and Number display above the components in the circuit drawing W Background Grid W Ruler Display Tool Bar 4 Status Bar IJ Component Name Dispaly LJ Component Id Display W File 4 Basic Gates Derived Gates Flip Flops W Simulation H Scope W Operation VO Parts My
8. can be putin High Impendence mode by EN pin In this mode it is like cut off from all other components All those components which have EN or output enable control pin their output pins become TRI State pins Note A Track can have only one Output pin but can have any number of Input and TRI State pins 14 9 Simulation After completing a circuit you can run the simulation to check the working of the circuit In simulation you may change or enter values in your circuit through input parts and observe the behavior of your circuit through output parts or ona digital Oscilloscope provided in this software There are four buttons associated with the simulation of any circuit gt Run the simulation O stop the simulation O Pause and Resume the simulation Q Single Step on every press of this button Simulation Modes A simulation can be run in two modes Data Change Mode In this mode whenever there is some data value changes by pressing a button or from the dock component the simulation will process all the parts to the new state If there is no data change no more processing will be done In this mode if you are observing the data changes in a digital oscilloscope the data signals are only updated when there is some data change in the circuit Real Time Mode In this mode the simulation keep on running whether there is some data change or not In this case if you are observing the data changes in a digital oscillosc
9. context menu About of the Module If the module uses any other module the name of the Designer of that Module will also be shown The Description is added by introducing a Text field named D into the circuit diagram of the Module MM Digital Logic Design Flip Flop dwg o amp es File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops I O Parts Simulation Scope VO II r Power B ie e DDI DY Be o m e O a H re re DD Be ef OO fF ses Ocm 1 2 a d 3 6 7 a 9 10 11 12 13 1a 15 16 17 1a 19 2 21 22 2 2a Fo J Ia 25 1 L ak L iA L dla ee L es I 1 Ea L I at 1 L ab 1 i L Ocm a is SR Flip Flop 24 a FTE Qo 5 Description 6 SR Flip Flop Author Majid Naeem a Majid Naeem 9 a7 Root 4 Il gt Ready x 150 y 141 Step by Step 1 Insert a Text field into the circuit diagram and enter the Description into it 2 Right click this Text field and assign the Text field Title as H 3 This Text field can be placed anywhere on the circuit diagram 4 Save the circuit and generate the Module 22 12 Components Parameters Component Menu provide a list of all available standard parts or component other than that available in the Tool Bar which can be customized and used for the circuit designing Adder Subtractor Comparator Converter Encoder Decoder 1 M
10. dification in one instance of a module does not affect any other instance of same module and therefore later changes in the module design will not affect the already used instances of such module until and unless manually replaced with the modified module 20 7 m Digital Logic Design Flip Flop dwg kodede File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops VO Parts Simulation Scope VO Il Power e l RID DID Di s m e 0 Ll gl E eT a elp D I 0 2O O a 1 2 3 a 5 amp 7 a a 10 11 12 1 1a 15 16 17 1a 19 2 a 2 2 2a l 1 L l L 1 l l fi I r f 1 1 f l l 1 l f L 1 l l Ocm JELRE E m w 4 Ill p 1 Component SR Flip Flop X 82 y 1 Suggestions The following suggestions are not bindings but useful for designing better reusable Modules e lf there isa Clock component in the circuit replace it with a Button and provide Clock signals externally to the Module e Remove replace all other Input output parts from the circuit as they serve no useful purpose in a module e When making such changes always modify a copy of that circuit file and not the original circuit diagram e f there is some component already available in the software like flip flops use these parts instead of designing new module for same functionality 21 Adding Description in Module The Designer name and Module Description appears in the
11. dule and select the name and folder for the newly generated Module The new Module will be generated 19 m Digital Logic Design Flip Flop dwg GE File Component Module Speed View Settings About f Fie rOperations rBasic Gates p Derived Gates p Flip Flops miO Parts B t e DDIIDD ws o mioo a sel rtall gt e DD He ef O00 Fs Simulation Scope rOll Power File Name SR Flip Flop Files of Type Module Files 8 All the Modules which are placed in Module folder will appear in Module menu of the program Digital Logic Desian Flip Flon dwe E a ii T EUP OUP uUwyg y ner File Component jule Speed View Settings About SRFlip Flop r Basic Gates w JID DD D t e e m e O a alt wii gt r DD ase aoo m m L File 3 E rO Parts r Simulation Derived Gates r Flip Flops Scope VOll Power Ocm 1 2 a a 3 G a 3 10 11 12 12 14 15 16 17 1a 19 2 21 22 2 2a a gt v 4 gt Ready x 267 y 9 9 The Modules which are stored in any other folder can be access using Load option in Module menu A module can be used as many times as needed in a circuit All such instances of a module behave as standalone and separate parts Any mo
12. e following signal values HI High value 1 LO Low value 0 RE Rising Edge when value is changing from LO to HI FE Falling edge when value is changing from HI to LO
13. er is required to set the number of input and output pins A user must provide a data file to provide conversion value This file may be placed in Data folder under the application folder This is a simple text file having con extension The format of the file is given below lt nout_Value gt lt Space gt lt Output_Value gt END Input value and output values are integer values separated by single space User is required to set the number of input pin User is required to set the number of input pin User is required to set the size of an input Chanel in Bits and also set the number of channels required in the Multiplexer A channel represents a value or operand Input channels are represented by pins whose names are started with A B C followed by pin number The output channel pins names are started with O followed by pin number The channel selection pins names are started with s 25 DeMux Properties User is required to set the size of an output Chanel in Bits and also set the number of channels required in the Multiplexer A channel represents a value or operand Output channels are represented by pins whose names are started with A B C followed by pin number The channel selection pins names are started with s The input channel pins names are started with i followed by the pin number Counter Properties User is required to provide the size of the counter in Bits CounterLoader Da
14. erties User is required to set the size of the operands in Bits which are going to be added A size of 4 means there will be two operands of 4 bits each and the result is also of 4 bits long Operands are represented by pins whose name started with a and b while output pins have name stated with O O a b The overflow or Carry pin C is HI when there is some carry 24 Subtractor Properties Comparator Properties Converter Properties Load Encoder Properties Decoder Properties Mux Properties User is required to set the size of the operands in Bits which are going to be subtracted A size of 4 means there will be two operands of 4 bits each and the result is also of 4 bits long Operands are represented by pins whose name started with a and b while output pins have name stated with O O a b The sign bit s represent the sign If b gt a then sign bit is set HI and remaining output pins show the magnitude User is required to set the size of the operands in Bits which are going to be compared A size of 4 means there will be two operands of 4 bits each and the result is of 3 bits long Operands are represented by pins whose name started with a and b while output pins have name stated with O The result of comparison is shown by the HI value on output pin named as a gt b a b and a lt b for respective result Us
15. f a word in Bits as Data size and also the size of the memory in number of locations These locations are accessed through address pins whose name starts with A followed by the pin number The data appears on output pins whose name starts with O followed by pin number Data can also be load into the memory The file may be placed in Data folder This is a simple text file having mem extension The format of the file is given below 2 lt Memory_Location gt lt Space gt lt Data_Value gt gt END Memory Location and Data value integer values separated by single space Memory Read Cycle 1 2 3 4 CS gt LO RW gt LO Set CS and RW control line to LO i e their de active value Set Memory address CS gt HI EN gt HI Set CS and EN control line to HI i e their active value CS gt LO Data from the given address will be appear on output pins Memory Write Cycle a a Se OS S CS gt LO Set Memory Address Set Data on Data Line through TRI State Gate RW gt HI CS gt HI Set CS and RW control line to LO i e their active value CS gt LO Data will be written in the given location 28 13 Control Pins Control pins add special features in a component Control Pins can be added and removed from a component through it context or drop down menu under Control Pins option by selection and deselecting the relevant checkbox The active value for these pins also setin the same menu Select Control Pi
16. his is an input part and provides logic HI value Itis connected at those places which require constant logic HI value 11 8 Track or Wire Tool Bar gt Operation Tool Box The word Track is borrowed from PCB Printed Circuit Board terminology which is used to assemble a circuit A Track is a printed wire on a circuit board which is used to connect components through their pins Track or wire is used to connect components with each other to form a circuit A circuit is a collection of tracks and components A Track plays the same role in this software as it plays in a PCB It is used to connect pins of various components in the circuit How to Connect Two pins via Track or Wire 1 Click the Track button in the Tool Bar in Operation Tools Box 2 Move to the drawing area The cursor will change its shape to a Track drawing and connecting tool Solding Iron w 3 Click the one of the pins you want to connect and move to the other pin A Track is start drawing as you move the mouse 4 Click the other pin you want to connect A straight line or Track will be drawn between the two pin i e both pins are now connected via this Track or wire Important Notes 1 When you bring the Track drawing cursor new to a pin or a Track the tool may change its color from Yellow to Green It means that you are allowed to connect to this Pin or Track If it does not change its color you are not allowed to connect
17. le is treated as reset or clear value BooleanExpression Load Memory Properties Load A user can also generate a custom component by providing Boolean expressions for the required custom components The Boolean expression is provided in Sum or Product form for each output pin of the component A user must provide Boolean Expression s in a data file This file may be placed in Data folder under the application folder This is a simple text file having exp extension The format of the file is given below lt Name_of_The_Component gt lt Number_of_Input_Pins gt lt Space gt lt Number_of_Output_Pins gt lt Name_of_Input_Pins_Separated_by Space gt lt Name_of_Output_Pins_Separated_by_ Space gt lt Minterms_of_Boolean_Expression_Separated_By Space_for_Output_Pin_0O gt lt Minterms_of_Boolean_Expression_Separated_By Space_for_Output_Pin_1 gt lt Minterms_of_Boolean_Expression Separated By Space_for_Output_Pin_n gt END Minterm are provided in decimal form separated by single spaces The Boolean Expression in the form of Minterms will be provided for each output pin in ascending order on separate line Pin names may be three characters long which may indude the pin number if the designer does so The input and output pin quantity i e number of input pins and number of output pins are provided as integer values separated by space Name of the component should be a single word name The user must provide the length o
18. ns and Their Active Value EN OH OLO ORE OFE Cie on OLO ORE OFE OH LO ORE GFE OH OLO ORE FE JLO GRE QFE C one The types and purpose of three common control pins are given below EN CS clk Output enable pin It is used to enable or disable output of a component When output is disabled the component output goes into high impedance Z mode Chip select pin It is use to select or deselect a component If a component CS id disable the component perform no operation Clock pin The purpose of this pin is to synchronize a component operation with other components In Counter components itis used to increment or decrement a counter A counter already has clk pin whichis RE or rising edge active There are some special control pins specific to different components as given below clr DN LD SF Clear or reset pin which is active HI In Counters it reset counter value to 0 Down counting pin which is active HI and itis available for Counter components to enable down counting of each clock pulse Load Counter pin It is used with Counters and Registers to directly load some data into the component It is usually set as active on RE or FE Shift control pin adds data shift property in the Register 29 DR Direction control pin determines the direction of data shift as left shift or right shiftin a Register Every control pin can be set active on any of th
19. number starting from 1 assigned to a component It is a good practice to use unique numbers for every component or at least the number should not be repeated for same type of components It is optional for most of the components but required for Probe Button and LED component When converting a circuit into a Module it is strongly recommended that Button and LED should be assigned unique numbers in ascending order according to their pin position in the newly created Module Propagation delay This value is option for all the components and only set when some critical timing analysis of a circuit is required It is needed for very advance level design A propagation del ay of 1 equals to one clock cyde i e the value of 5 means a propagation delay of 5 clock cycles It is an advance concept and should used with lot of care Normally components have no propagation delay in this software There are three more parameters specific to components Control Pins Properties Load You can add or remove control pins in a component The control pins are discussed in a separate section It varies from one type of component to other It is used to set number of input and output pins or size of value in bits according to the component type It is used to load some data into the component This feature is discussed in relevant component section The parameters specific to components are discussed below with relevant components Adder Prop
20. on H Power 2 Tool Bar Parts and their Function File File Related Operations Create New Circuit Drawing and Close all other circuit drawings Open an Existing Circuit Drawing Close all other circuit drawings Save Current Circuit Drawing If name of the file is not assigned ask for the name Ca Print currently open circuit drawing Set Application State to perform various Operations on Circuit Drawing Drag the Whole Circuit drawing to some new position Ready State Perform various Editing Operations on Components and Tracks and Place and Remove Components Track and Text Nodes in the Circuit Drawing Text Node Add Text in the Circuit Drawing Track Mode Draw Track to connect components D ewaeee D eee Ee ee D e Sequential Circuit Designing Basic Components May be designed using Basic and Derived Gates JK Flip Flop with reset dr and set pin which may be left unconnected if not needed D Flip Flop with reset dr and set pin which may be left unconnected if not needed T Flip Flop with reset dr and set pin which may be left unconnected if not needed I O Parts Input Out Parts BUTTON Input Part Click On Click OFF mo CLOCK Input Part Provided continuous train of On Off square wave signals LED Output Part show signal state SSD Seven Segment Display Output Part Sai eee Digital Oscilloscope and its Probe to monitor Digital Signals at various multiple points in the circuit du
21. ope the data signals are continuously updated and appearing on the display showing the current status of the signals in real time Selection of Simulation Modes The above mentioned modes enabled by selecting or deselecting the Global Clock options in the Clock menu of the software Selecting this option will enable Real Time mode while de selecting this option select Data Change mode 15 10 Digital Scope The Digital Osalloscope or Scope provides the visual information regarding signal level at different points in a circuit The Scope works in combination with the probe which marks the places where we monitor the signal level during running of the circuit Step by Step 1 Design the circuit or open already designed circuit IM Digital Logic Design J aie File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops VO Parts Simulation Scope VO II Power B t F DDI DD He S m e 0o Il gt Ready x 381 y 336 Decide about the points where you want to monitor the signal level in the circuit during its operation Now click the Probe amp icon the Scope tool box in the tool bar at the top of the window Now move to the drawing area The cursor will change its shape to a Black circle aS wW IW Click the mouse near the place where you want to monitor the signal level A back Circle is placed at that place
22. ring Simulation Probe Use to mark the points in the circuit where signal monitoring is required a Oscilloscope Opens up in a separate window to Display the selected digital signals I O Il Advanced Input Output Parts 7 Bits ASCII Keypad as Input Part Zs CRT Display to display 7 Bits ASCII data and characters Opensin a separate window rome erie Input Part Provide constant LO signal Input Part Provides constant HI Signal 3 Basic Input and Output Parts Button This is an input part and used to provide HI and LO input In normal state it provides LO input and when pressed during running of simulation provides HI input LED O This is an output part and use to display the signal level This part has single connection The above two parts have two parameters Name and Number to be assigned appropriate values by the user If you are converting a circuit into a re usable Module itis strongly recommended that you should assigned values to these two parameters as explained in Module section Clock checke uM This is an input part and use to provide continuous train of HI and LO signal The speed of the clock can be set from the Clock menu It provides a single pin connection SSD Seven Signal Display This is an output component It has seven input connections each connected with one segment of the part The pins are treated as a g from top to bottom These pins are active HI
23. t in the circuit are replaced by input and output pins of the Module The name of these parts becomes the name of the pin while their Number becomes the pin number which determines the position of this pin in the image of the newly created Module Step by Step 1 Design the circuit for the Module 2 Place and connect Button on all the places which will appear as input pins of the Module 3 Place and connect LED on all the places which will appear as Output pins of the Module 4 Assign proper name using drop down menu at most three characters long to these Button and LED 5 Assign Number to these Button and LED using drop down menu according to their placement on the Module image MM Digital Logic Design Flip Flop dwg ol E fE File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops I O Parts Simulation Scope VO Il Power B t r DDD DlA me ole l gle H eT gt lD YD EL e A E ME G a 9 10 11 12 12 14 15 16 17 13 19 2 21 22 2 2d i gt d gt fz r _ Le c ka r _ om p s am vs FE i Dl Ready x 70 y 353 6 If you want to place a Not Connected or NC pin just place a Button or LED in the circuit diagram and assign it name NC and a number as per its position but do not connect it to any other Track or pin 7 Now select menu File gt To Mo
24. ta is provided on the data input pins whose name started with D followed by the pin number to be loaded into the counter Properties User is required to provide the size of the counter in Bits CounterRandom Properties User is required to provide the size of the counter in Bits Load A user must provide a data file to provide random valuesin the same order as may be appear on the counter output This file may be placed in Data folder under the application folder This is a simple text file having crd extension The format of the file is given below lt Random_Value gt END Random value is an integer value Register Properties User is required to provide the size of the Register in Bits StateMachine It is a component whose next output depends upon it current input value and on current output value Current_Input Current_Output gt Next_Output Properties User is required to set the number of input and output pins Load A user must provide a data file to provide conversion value This file may be placed in Data folder under the application folder This is a simple text file having smd extension The format of the file is given below lt Inout_Value gt lt Space gt lt Outpout_Value gt gt lt Space gt lt Next_Outout_Value gt 26 END Input value output values and next output values are integer values separated by single space If clr or Clear or Reset pin is available the first Output_Value in the fi
25. ux DeMux Counter CounterLoader CounterRandom Register Memory StateMachine Boolean Expression A component may have a number of parameters like name and id number which may be set by using component context or drop down menu in a circuit drawing This menu appears when a component is right dicked with the mouse Components may have different parameters depending upon their type Some components have more parameters which may be set while some has less Some parameters like name and id are common for all the components while some are available for specific components This section provides the details regarding parameters of components which may be set by the user Ill Digital Logic Design o a File Component Module Speed View Settings About File Operations Basic Gates Derived Gates Flip Flops 1 0 Parts Simulation Scope VO II Power B Gt rD DID 2 Sm o0 LL amp m AT a gt lD D e5o008 a den 1 2 d 5 G 7 a 9 10 11 12 12 1a 15 16 1 1a 19 2 21 22 Zz 24 wat 1 L 4 1 E 1 1 1 ue 1 L L x i 1 i at 1 L L a t4 24 n an Tpd Properties Control Pins Ki I ww gt Ready x 313 y 122 23 There are three common parameters for each component Name Number Tpd It is single word meaningful Name of the Component assigned by the designer It is optional but required for Probe Button and LED component It is an integer
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