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Consider a control unit design in which 42 control signals are to be generated and the system is supporting 4−flag conditions. If the 64−bit control word is stored in control memory, then which of the following is true about control memory size and maximum degree of parallelism in both horizontal and vertical micro-programmed control unit. (For, vertical micro-programmed control unit, the same number of locations should be taken as horizontal).
Note:
HμPC denotes Horizontal micro-programmed control unit.
VμPC denotes Vertical micro-programmed control unit.
  • a)
    HμPC : 8 MB, 42
  • b)
    VμPC : 3 MB, 42
  • c)
    HμPC : 8 MB, 1
  • d)
    VμPC : 3 MB, 1
Correct answer is option 'A,D'. Can you explain this answer?
Most Upvoted Answer
Consider a control unit design in which 42 control signals are to be g...
As we know that,
In a horizontal micro-programmed control unit, one bit per control signal is required and in a vertical micro- programmed control unit, control signal is encoded for k bits as 2k signals.
Given,
Case 1:
Horizontal micro- programmed control unit (HμPC):
 
Size of control memory in words =220
But each word contain 64 bits,
Control memory size in byte = 
=223
=8 MB
Maximum degree of parallelism = control signals =42
Case 2:
Vertical micro programmed control unit (VμPC):
The number of locations is the same, So the next part will remain the same as of 20 bits.

Control word is of 20 + 6 + 2 = 28 bits.
Control memory size in bytes = 
=220×3
=3 MB
Maximum degree of parallelism in vertical micro programmed control unit is always 1.
Hence, the correct options are (A) and (D).
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Consider a control unit design in which 42 control signals are to be generated and the system is supporting 4−flag conditions. If the 64−bit control word is stored in control memory, then which of the following is true about control memory size and maximum degree of parallelism in both horizontal and vertical micro-programmed control unit. (For, vertical micro-programmed control unit, the same number of locations should be taken as horizontal).Note:HμPC denotes Horizontal micro-programmed control unit.VμPC denotes Vertical micro-programmed control unit.a)HμPC : 8 MB, 42b)VμPC : 3 MB, 42c)HμPC : 8 MB, 1d)VμPC : 3 MB, 1Correct answer is option 'A,D'. Can you explain this answer?
Question Description
Consider a control unit design in which 42 control signals are to be generated and the system is supporting 4−flag conditions. If the 64−bit control word is stored in control memory, then which of the following is true about control memory size and maximum degree of parallelism in both horizontal and vertical micro-programmed control unit. (For, vertical micro-programmed control unit, the same number of locations should be taken as horizontal).Note:HμPC denotes Horizontal micro-programmed control unit.VμPC denotes Vertical micro-programmed control unit.a)HμPC : 8 MB, 42b)VμPC : 3 MB, 42c)HμPC : 8 MB, 1d)VμPC : 3 MB, 1Correct answer is option 'A,D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider a control unit design in which 42 control signals are to be generated and the system is supporting 4−flag conditions. If the 64−bit control word is stored in control memory, then which of the following is true about control memory size and maximum degree of parallelism in both horizontal and vertical micro-programmed control unit. (For, vertical micro-programmed control unit, the same number of locations should be taken as horizontal).Note:HμPC denotes Horizontal micro-programmed control unit.VμPC denotes Vertical micro-programmed control unit.a)HμPC : 8 MB, 42b)VμPC : 3 MB, 42c)HμPC : 8 MB, 1d)VμPC : 3 MB, 1Correct answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider a control unit design in which 42 control signals are to be generated and the system is supporting 4−flag conditions. If the 64−bit control word is stored in control memory, then which of the following is true about control memory size and maximum degree of parallelism in both horizontal and vertical micro-programmed control unit. (For, vertical micro-programmed control unit, the same number of locations should be taken as horizontal).Note:HμPC denotes Horizontal micro-programmed control unit.VμPC denotes Vertical micro-programmed control unit.a)HμPC : 8 MB, 42b)VμPC : 3 MB, 42c)HμPC : 8 MB, 1d)VμPC : 3 MB, 1Correct answer is option 'A,D'. Can you explain this answer?.
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