Sequence Counter with D ffs

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logicpro9999

Joined Apr 3, 2010
4
I made a counter with D flipflops
D1 LSB and D2 MSB

two outpout z2,z1 z2 MSB,z1 LSB

Q1=not D1
Q2=D2 xor D1

z1=q1 and (not q2)
z2=q1 and q2
z1,z2 gives the 0102 sequence
is this correct?
 
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