what is race around condition

what is race around condition

1 year ago 90
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A race around condition, also known as a race condition or race hazard, is a condition in electronics, software, or other systems where the systems behavior is dependent on the sequence or timing of other uncontrollable events. It becomes a bug when one or more of the possible behaviors is undesirable. Race conditions can occur especially in logic circuits, multithreaded, or distributed software programs.

In the context of JK flip-flops, a race around condition occurs when both inputs J and K are equal to 1 and the clock is also equal to 1 for a long period of time. This causes the output Q to toggle as long as the clock remains high, making the output unstable or uncertain. This problem can be avoided by ensuring that the clock input is at a high level for a very short duration. The circuit used to overcome race around conditions is called the Master Slave JK flip flop. Increasing the delay of the flip-flop is another method to eliminate race around conditions.

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