(chapter 3) Shift Register - Shift Register Introduction Is...

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Shift Register
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Introduction Is the arrangements of flip flop and important in application of STORAGE and TRANSFER DATA in digital system. Register is solely used for storing & shifting data.
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Shift Register Register in digital circuit with TWO basic functions: Data Storage Data Movement Stores “1” – setting the flip flop Stores “0” - resetting the flip flop.
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Example 1
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Example 2
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Example 3
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Example 4 (Serial In/Serial Out)
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Example 4 Cont.
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Example 4 Cont.
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Example 4 Cont. Operation Example 4 (Serial Entry of Data) : Entry is the 4 bits 1010 into the register. Beginning with least significant bit (LSB). The register is “initially clear” . When 1 st clock applied, FF0 is reset, means storing the “0”. 2 nd clock applied, which is a “1”, is applied to the data input, making D=1 for FF0 and D=0 for FF1 because D input of FF1 is connected to the Q0 output. When the 2 nd clock occurred, the “1” on the data input is shifted into FF0, causing FF0 to set, and the “0” that was in FF0 is shifted into FF1.
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Example 4 Cont.
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  • Fall '15
  • professor
  • 4 bits, Flip-flop, Least significant bit

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