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Combinational Logic and Verilog

Combinational Logic and Verilog. XORs and XNORs. XOR. XOR gates. Cascading XOR gates. Parity Generation. 74x280 9-bit odd/even parity generator. Verilog for 9-input parity checker. Structural Verilog for 74x280 parity checker. Parity generation and checking for a 8-bit-wide memory.

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Combinational Logic and Verilog

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  1. Combinational Logic and Verilog

  2. XORs and XNORs

  3. XOR

  4. XOR gates

  5. Cascading XOR gates

  6. Parity Generation

  7. 74x280 9-bit odd/even parity generator

  8. Verilog for 9-input parity checker

  9. Structural Verilog for 74x280 parity checker

  10. Parity generation and checking for a 8-bit-wide memory

  11. Error-correcting circuit for a 7-bit Hamming Code Exors for parity see next slide

  12. Error-correcting circuit for a 7-bit Hamming Code

  13. Behavioral Verilog for Hamming error correction This is the same code as in last slide

  14. Tree and Iterative circuits

  15. Fig.6.74. XORs in comparators

  16. Big OR functions

  17. Iterative combinational Circuits

  18. Iterative Comparators

  19. Iterative comparator of equality

  20. 74x85 4-bit comparator Output of A less than B Input of A less than B Input of A equal B output of A equal B Input of A greater than B 4-bit of A and 4-bit of B Output of A greater than B

  21. 12-bit comparator using 74x85 Iterative circuit

  22. Five versions of Verilog comparator Verilog for 74x85

  23. Verilog comparator

  24. Verilog comparator

  25. Verilog comparator

  26. Verilog Comparator

  27. 74x682 8-bit comparator EQ and Greater

  28. 74x682 8-bit comparator

  29. Arithmetic Conditions (predicates) derived from 74x682 outputs

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