Registers

# Registers - T τ su h IN 1 IN 2 IN 3 Clk Registers ✔...

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Click to edit Master subtitle style Registers Password_________________ © Copyright 2009 Daniel Tylavsky

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Because it takes time for signals to propagate through gates of a flip-flop, there is a minimum amount of time over which an input must be applied if the change in state is to be made reliably during a clocking event. Q Q S R Clock S R Registers
Defn: Set-up time - Time before a clocking event during which an input must remain within 10% of its final value for proper state transition. Defn: Hold time - Time after a clocking event during which the input must remain within 10% of its final value for proper state transition. Registers

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Which of the following signal are invalid?

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Unformatted text preview: T τ su h IN 1 IN 2 IN 3 Clk Registers ✔ Build a 2-bit shift register. (Note the asynchronous set/reset inputs.) D Clk Q Q R S D Clk Q Q R S DI N Clock 1= 1 1 1 For this to work, what must be the relationship between delay & hold time, ? h D h D h D τ < = Registers ✔ Open “Register.cct” and verify the operation of the shift register a.k.a. serial-in/serial-out (SISO) register. ✔ Explore the performance of: – SIPO (serial-in/parallel-out) register – PIPO (parallel-in/parallel-out) register – PISO & SISO register Registers Click to edit Master subtitle style The End...
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## This note was uploaded on 10/21/2010 for the course CSE 120 taught by Professor Matar during the Spring '08 term at ASU.

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Registers - T τ su h IN 1 IN 2 IN 3 Clk Registers ✔...

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