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A serial in/parallel out, 4-bit shift register initially contains all 1s. The data nibble 0111 is waiting to enter. After four clock pulses, the register contains ________
- a)0000
- b)1111
- c)0111
- d)1000
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
A serial in/parallel out, 4-bit shift register initially contains all ...
In Serial-In/Parallel-Out shift register, data will be shifted all at a time with every clock pulse. Therefore,
Wait | Store
0111 | 0000
011 | 1000 1st clk
01 | 1100 2nd clk
0 | 1110 3rd clk
X | 1111 4th clk.
Wait | Store
0111 | 0000
011 | 1000 1st clk
01 | 1100 2nd clk
0 | 1110 3rd clk
X | 1111 4th clk.
Most Upvoted Answer
A serial in/parallel out, 4-bit shift register initially contains all ...
Introduction:
A shift register is a type of sequential logic circuit that can shift the data stored in it one bit at a time. It is commonly used in digital systems for various applications, such as data storage, data transfer, and serial-to-parallel or parallel-to-serial conversion. In this question, we are given a serial-in/parallel-out, 4-bit shift register initially containing all 1s. We need to determine the content of the register after four clock pulses when the data nibble 0111 is waiting to enter.
Solution:
To solve this problem, we will go through the steps of shifting the data nibble into the shift register for four clock pulses and determine the final content of the register.
Step 1: Initial State
The shift register initially contains all 1s.
Register content: 1111
Step 2: Clock Pulse 1
During the first clock pulse, the data nibble 0111 enters the shift register from the serial input.
Register content after Clock Pulse 1: 1110
Step 3: Clock Pulse 2
During the second clock pulse, the data in the register is shifted one bit to the right.
Register content after Clock Pulse 2: 0111
Step 4: Clock Pulse 3
During the third clock pulse, the data in the register is shifted one bit to the right again.
Register content after Clock Pulse 3: 0011
Step 5: Clock Pulse 4
During the fourth clock pulse, the data in the register is shifted one bit to the right for the final time.
Register content after Clock Pulse 4: 0001
Final Answer:
After four clock pulses, the register contains the data 0001. Therefore, the correct answer is option C - 0111.
A shift register is a type of sequential logic circuit that can shift the data stored in it one bit at a time. It is commonly used in digital systems for various applications, such as data storage, data transfer, and serial-to-parallel or parallel-to-serial conversion. In this question, we are given a serial-in/parallel-out, 4-bit shift register initially containing all 1s. We need to determine the content of the register after four clock pulses when the data nibble 0111 is waiting to enter.
Solution:
To solve this problem, we will go through the steps of shifting the data nibble into the shift register for four clock pulses and determine the final content of the register.
Step 1: Initial State
The shift register initially contains all 1s.
Register content: 1111
Step 2: Clock Pulse 1
During the first clock pulse, the data nibble 0111 enters the shift register from the serial input.
Register content after Clock Pulse 1: 1110
Step 3: Clock Pulse 2
During the second clock pulse, the data in the register is shifted one bit to the right.
Register content after Clock Pulse 2: 0111
Step 4: Clock Pulse 3
During the third clock pulse, the data in the register is shifted one bit to the right again.
Register content after Clock Pulse 3: 0011
Step 5: Clock Pulse 4
During the fourth clock pulse, the data in the register is shifted one bit to the right for the final time.
Register content after Clock Pulse 4: 0001
Final Answer:
After four clock pulses, the register contains the data 0001. Therefore, the correct answer is option C - 0111.
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Community Answer
A serial in/parallel out, 4-bit shift register initially contains all ...
In Serial-In/Parallel-Out shift register, data will be shifted all at a time with every clock pulse. Therefore,
Wait | Store
0111 | 0000
011 | 1000 1st clk
01 | 1100 2nd clk
0 | 1110 3rd clk
X | 1111 4th clk.
Wait | Store
0111 | 0000
011 | 1000 1st clk
01 | 1100 2nd clk
0 | 1110 3rd clk
X | 1111 4th clk.
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A serial in/parallel out, 4-bit shift register initially contains all 1s. The data nibble 0111 is waiting to enter. After four clock pulses, the register contains ________a)0000b)1111c)0111d)1000Correct answer is option 'C'. Can you explain this answer?
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