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Combinational Logic and Verilog
XORs and XNORs
Cascading XOR gates
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
Error-correcting circuit for a 7-bit Hamming Code Exors for parity see next slide
Error-correcting circuit for a 7-bit Hamming Code
Behavioral Verilog for Hamming error correction This is the same code as in last slide
Tree and Iterative circuits
Fig.6.74. XORs in comparators
Big OR functions
Iterative combinational Circuits
Iterative comparator of equality
74x85 4-bit comparator Output of A greater than B Output of A less than B output of A equal B 4-bit of A and 4-bit of B Input of A less than B Input of A equal B Input of A greater than B
12-bit comparator using 74x85 Iterative circuit
Verilog for 74x85 Five versions of Verilog comparator
74x682 8-bit comparator EQ and Greater
74x682 8-bit comparator
Arithmetic Conditions (predicates) derived from 74x682 outputs
Basic Logic Gates Discussion D5.1 Section Sections 13-3, 13-4.
EET 1131 Unit 6 Exclusive-OR and Exclusive-NOR Gates
Other Gate Types COE 202 Digital Logic Design Dr. Aiman El-Maleh
Exclusive-OR and Exclusive-NOR Gates
Logic Circuits Design presented by Amr Al-Awamry
CSCI 4717/5717 Computer Architecture
Comparators Combinational Design.
ECE 3110: Introduction to Digital Systems Chapter 6 Combinational Logic Design Practices XOR, Parity Circuits, Comparators.
n-bit comparator using 1-bit comparator
ReturnNext A circuit that compares two binary words and indicates whether they are equal is called a comparator. Some comparators interpret their input.
Overview Part 3 – Additional Gates and Circuits 2-8 Other Gate Types
Parity Generator and Checker
Module 8. In Module 3, we have learned about Exclusive OR (XOR) gate. Boolean Expression AB’ + A’B = Y also A B = Y Logic Gate Truth table ABY.
EET 1131 Unit 6 Exclusive-OR and Exclusive-NOR Gates Read Kleitz, Chapter 6. Do Unit 6 e-Lesson. Homework #6 and Lab #6 due next week. Quiz next.
CSE-221 Digital Logic Design (DLD)
Parity. 2 Datasheets TTL: CMOS:
5.8 Exclusive-OR Gates and Parity Circuits ReturnNext Exclusive-OR(XOR) Gates Exclusive-NOR(XNOR) Gates x ⊕ y=x · y+x · y x ⊙ y=x · y+x · y
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