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Timing & Analysis Terms

Timing closure, setup/hold, slack, metastability, clock-domain crossing (CDC), constraints (SDC, XDC).

6 terms in this category.

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C
  • Clock Domain Crossing A clock domain crossing (CDC) occurs when a digital signal is generated in one clock domain and sampled in another, where the two clocks are...
  • Clock Skew Clock skew is the difference in arrival time of the same clock edge at two or more points in a digital circuit, caused by differences in rou...
G
  • Glitch A glitch is a spurious, unintended pulse or transient on a digital signal that occurs when combinational logic paths of different lengths ca...
J
  • Jitter Jitter is the variation in the timing of a periodic signal or event relative to its ideal, expected position in time. It is measured as a de...
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  • Metastability Metastability is a condition in which a digital storage element (flip-flop, latch, or register) enters an indeterminate output state because...
T
  • Timing Constraints Timing constraints are designer-supplied rules that tell an FPGA or ASIC implementation tool what timing requirements a design must meet, in...