1. Below is a D flipflop constructed out of two clocked D-latches. Assume D is 1, the clock (C) is 1, and Q, the previous value of the D-flipflop, is 0. What is the current output of the D flipflop? What will the output be when the Clock changes to 0? D D D latch latch

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1. Below is a D flipflop constructed out of two clocked D-latches. Assume D is 1, the clock (C) is 1, and Q, the
previous value of the D-flipflop, is 0. What is the current output of the D flipflop? What will the output be when
the Clock changes to 0?
D
D
D
D
latch
latch
C
Transcribed Image Text:1. Below is a D flipflop constructed out of two clocked D-latches. Assume D is 1, the clock (C) is 1, and Q, the previous value of the D-flipflop, is 0. What is the current output of the D flipflop? What will the output be when the Clock changes to 0? D D D D latch latch C
2. Below is a J-K flipflop constructed out of two S-R latches. Given the diagram, fill out the truth table below for
Qneat, the value of Q after the falling edge of the clock. Q is the current value of Q, before the falling clock edge.
Note that the outputs from each S-R latch are Q and Q (symbolized by the dot).
J
C-
K
R
(a)
JKQ
0 00
0 0
Qnext
1
1
0 1
1 0
1 0
1
1
1
1
1
1
1
Transcribed Image Text:2. Below is a J-K flipflop constructed out of two S-R latches. Given the diagram, fill out the truth table below for Qneat, the value of Q after the falling edge of the clock. Q is the current value of Q, before the falling clock edge. Note that the outputs from each S-R latch are Q and Q (symbolized by the dot). J C- K R (a) JKQ 0 00 0 0 Qnext 1 1 0 1 1 0 1 0 1 1 1 1 1 1 1
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