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23 Maj 2022 - 04:38
System verilog testband for parallel to serial converter
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System verilog testband for parallel to serial converter








system verilog testband for parallel to serial converter
  1. SYSTEM VERILOG TESTBAND FOR PARALLEL TO SERIAL CONVERTER FULL
  2. SYSTEM VERILOG TESTBAND FOR PARALLEL TO SERIAL CONVERTER VERIFICATION
  3. SYSTEM VERILOG TESTBAND FOR PARALLEL TO SERIAL CONVERTER CODE

  • Can include functionality & built-in protocol checking.
  • Several modules often have many of the same ports.
    • Interfaces : to encapsulate communication and facilitate “Communication Oriented” design
  • a sequence of conditions that span multiple clock cycles.
  • $isunknown() returns true if any bit of the expression is ‘x’.
  • $inset (, ) returns true if the first expression is equal to at least other expression argument.
  • $onehot0() returns true if at most one bit of expression is low.
    • assert (a ) returns true if only one and only one bit of expression is high. always clock) a = a + 1 // blocking assignment always clock) begin. Pass and Fail statements in strobed assertions must not create more events at that time slot or change values. If immediate assertion is triggered by a timing control that happens at the same time as a blocking assignment to the data being tested, there is a risk of the wrong value being sampled.
  • $info assert (myfunc(a,b)) count1 = count + 1 else ->event1 assert ( expression ).
    • The first argument shall be consistent with the argument to $finish.
  • $fatal : terminates the simulation with an error code.
  • Clocked : being triggered by an event or sampling clock.
  • Strobed : schedule the evaluation of the expression for the end of current timescale to let the glitches settle down.
  • Immediate : at the time of statement execution.
  • Concurrent: the property must be true throughout a simulation.
  • Special language constructs to verify design behavior a statement that a specific condition, or sequence of conditions, in a design is true.
  • Warning: adds several new keywords to the Verilog language  Identifiers may cause errors: use Compatibility switches.
  • SystemVerilog is fully compatible with the IEEE 1364-2001 Verilog standard.
  • Assertions : OVA from Verplex, ForSpec from Intel, Sugar (renamed PSL) from IBM, and OVA from Synopsys.
  • Testbench constructs : Open Vera language and VCS DirectC interface technology by Synopsys.
  • High-level modeling constructs : Superlog language developed by Co-Design.
  • Accellera chose not to re-invent the wheel and relied on donations of technology from a number of companies.

    • SYSTEM VERILOG TESTBAND FOR PARALLEL TO SERIAL CONVERTER VERIFICATION

  • more concisely describe complex verification routines.
  • Hardware Verification Languages (HVLs).

    • SYSTEM VERILOG TESTBAND FOR PARALLEL TO SERIAL CONVERTER FULL

  • model full systems at a much higher level of abstraction.
  • Higher Level Design, simulation, synthesis, Test….
  • Simulation time Have increased as well.

    • SYSTEM VERILOG TESTBAND FOR PARALLEL TO SERIAL CONVERTER CODE

  • Improved productivity, readability, and reusability of Verilog based code.
  • More abstraction: modeling hardware at the RTL and system level.
  • Extensive enhancements to the IEEE 1364 Verilog-2001 standard.
    • System Verilog Narges Baniasadi University of Tehran Spring 2004










    System verilog testband for parallel to serial converter
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