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DescriptionQ030
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Q030DVASIC interview problem

Two Requesters Receive a Grant

TechniquesDVWaveform DebuggingArbitration
DifficultyEasy
TopicWaveform Debugging
LanguageSystemVerilog
Format4 choices
01

Problem

A two-requester arbiter may select no requester or exactly one requester on each rising edge. Rule to apply: grant0 and grant1 must never both be 1 at the same sampled edge. Which assertion fails at C4?

Waveform for Two Requesters Receive a Grant. Signals: req0, req1, grant0, grant1. Numbered markers identify sampled columns.
Read the sampled columns from left to right, then test each choice against the stated timing rule.
02

Answer choices (4)