help please Shift registers also use flip-flops. Here are some questions related

Question

help please

Shift registers also use flip-flops. Here are some questions related to their behavior: To serially shift a byte of data into a shift register, there must be one clock pulse eight clock pulses four clock pulses sixteen clock pulses To parallel load a byte of data into a shift register with a synchronous load, there must be sixteen clock pulses one clock pulse for each 1 in the data eight clock pulses one clock pulse With a 25 kHz clock frequency, 2 bytes can be serially entered into a shift register in 8 ms 32 ms 4 ms 64 ms A modulus-16 Ring Shift Counter requires 8 flip-flops 4 flip-flops 32 flip-flops A modulus-12 Johnson Shift Counter requires 12 flip-flops 24 flip-flops 6 flip-flops 8 flip-flops The Johnson Shift and Ring Shift Counters are shift registers, so why are they called counters? What is the main difference between them? Determine the state of an 8-bit Johnson Shift Counter after 6 clock pulses if the initial state 11100000. Please show your work

Explanation / Answer

6

1)b

2)d

3)d

as it is 2*8/25*10^6=0.64ms

8)

11100000

11000000 after 1st clock cycle

10000000 after 2nd clock cycle

00000000 after 3rd clock cycle

00000001 ..

00000011 ..

00000111...

00001111...

00011111 after 8th clock cycle

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