How do you calculate maximum clock skew?
Max clock skew = Clock period – (FF propagation delay + max combination circuit delay + FF Setup time) Max clock skew = 200 – (35 + (60+20) + 30) = 200 – 145 = 55 ps.
What are the two possibilities of increasing the clock rate?
CLOCK RATE: There are two possibilities for increasing the clock rate, R. First, improving the integratedcircuit (IC) technology makes logic circuits faster, which reduces the time needed to complete a basic step. This allows the clock period, P, to be reduced and the clock rate, R, to be increased.
Is there a limit to the clock frequency?
Revisit Example 3.11 and assume that the system has 50 ps of clock skew. The critical path is unaffected, so the maximum clock frequency remains 3.33 GHz. The short path increases to 80 ps. This is still less than thold + tskew = 110 ps, so the circuit still violates its hold time constraint.
How to calculate the maximum clock frequency in flipflop?
Use the maximum values of each delay for this calculation. In this circuit, there are three separate paths you need to consider. Then, you go back and add up the minimum delay values (sometimes called “contamination delay” in modern texts) to verify that Th is also met on every FF.
How to calculate the maximum clock cycle period?
Let us assume T clk is the clock cycle period; T FF is the time for which the input to the flip-flop must be kept stable; T setup is time for which the input signal must be stable before the clock edge appears; T max _ path is the delay of the combinational circuit, and K is a constant for the assumed microarchitecture [6].
How to calculate the maximum clock path delay?
Hence we can write an equation as: Maximum Clock Frequency = 1/ (Max Data Path Delay – Min Clock Path Delay + Tsetup) Tclk_q delay is the time required by the flip-flop to transfer the input to output after the clock edge arrives.