altern associated with a LFSR with the same number of outputs as that of figure Q7? (c) State the criteria which must hold for a LFSR to be of maximal length. (d) Show, by using a characteristic polynomial or by any other means, that the pseudo-random sequence generated by this circuit is not of maximal length. Describe the operation and purpose of the logic gates lahelod operation of the gir (e)

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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Explain c and d)?
Consider the Linear Feedback Shift Register (LFSR) of Figure Q7.
Describe two practical uses of LFSRS, and discuss the properties which make
them useful for these applications.
(a)
What is the maximal length of bit pattern associated with a LFSR with the
same number of outputs as that of figure Q7?
(b)
(c)
State the criteria which must hold for a LFSR to be of maximal length.
Show, by using a characteristic polynomial or by any other means, that the
pseudo-random sequence generated by this circuit is not of maximal length.
(d)
Describe the operation and purpose of the logic gates labeled A and B in the
operation of the circuit.
(e)
6-bit parallel out
shift register
clk
a reset
serial_in
Figure Q7
Transcribed Image Text:Consider the Linear Feedback Shift Register (LFSR) of Figure Q7. Describe two practical uses of LFSRS, and discuss the properties which make them useful for these applications. (a) What is the maximal length of bit pattern associated with a LFSR with the same number of outputs as that of figure Q7? (b) (c) State the criteria which must hold for a LFSR to be of maximal length. Show, by using a characteristic polynomial or by any other means, that the pseudo-random sequence generated by this circuit is not of maximal length. (d) Describe the operation and purpose of the logic gates labeled A and B in the operation of the circuit. (e) 6-bit parallel out shift register clk a reset serial_in Figure Q7
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