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Which one of the following register of 8085 microprocessor is not a part of the programming model?
- a)Instruction register
- b)Memory address register
- c)Status register
- d)Temporary data register
Correct answer is option 'C'. Can you explain this answer?
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Which one of the following register of 8085 microprocessor is not a pa...
Understanding the 8085 Microprocessor Registers
The 8085 microprocessor has a well-defined programming model that includes several important registers. Each register serves a specific purpose in the execution of instructions.
Registers Included in the Programming Model
- Instruction Register: Holds the current instruction being executed.
- Memory Address Register (MAR): Stores the address of the memory location to be accessed.
- Temporary Data Register (TDR): Used for temporary storage of data during instruction execution.
What is the Status Register?
The Status Register is sometimes referred to in context but is not part of the direct programming model of the 8085. Instead, it typically contains flags that indicate the status of the processor (like zero, carry, sign, parity, and auxiliary carry flags) after an operation has been performed.
Why Option 'C' is Correct?
- The Status Register is not explicitly used for programming purposes; it's more of an internal mechanism that reflects the state of the processor after operations.
- The other options (Instruction Register, Memory Address Register, Temporary Data Register) are integral to the flow of instructions and directly interact with the programming model.
Conclusion
In summary, while the Status Register provides essential information about the processor's state, it does not play a direct role in the programming model of the 8085 microprocessor, making option 'C' the correct answer. Understanding these distinctions helps clarify the roles of various registers in microprocessor design and functionality.
The 8085 microprocessor has a well-defined programming model that includes several important registers. Each register serves a specific purpose in the execution of instructions.
Registers Included in the Programming Model
- Instruction Register: Holds the current instruction being executed.
- Memory Address Register (MAR): Stores the address of the memory location to be accessed.
- Temporary Data Register (TDR): Used for temporary storage of data during instruction execution.
What is the Status Register?
The Status Register is sometimes referred to in context but is not part of the direct programming model of the 8085. Instead, it typically contains flags that indicate the status of the processor (like zero, carry, sign, parity, and auxiliary carry flags) after an operation has been performed.
Why Option 'C' is Correct?
- The Status Register is not explicitly used for programming purposes; it's more of an internal mechanism that reflects the state of the processor after operations.
- The other options (Instruction Register, Memory Address Register, Temporary Data Register) are integral to the flow of instructions and directly interact with the programming model.
Conclusion
In summary, while the Status Register provides essential information about the processor's state, it does not play a direct role in the programming model of the 8085 microprocessor, making option 'C' the correct answer. Understanding these distinctions helps clarify the roles of various registers in microprocessor design and functionality.
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Which one of the following register of 8085 microprocessor is not a part of the programming model?a)Instruction registerb)Memory address registerc)Status registerd)Temporary data registerCorrect answer is option 'C'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2025 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Which one of the following register of 8085 microprocessor is not a part of the programming model?a)Instruction registerb)Memory address registerc)Status registerd)Temporary data registerCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following register of 8085 microprocessor is not a part of the programming model?a)Instruction registerb)Memory address registerc)Status registerd)Temporary data registerCorrect answer is option 'C'. Can you explain this answer?.
Which one of the following register of 8085 microprocessor is not a part of the programming model?a)Instruction registerb)Memory address registerc)Status registerd)Temporary data registerCorrect answer is option 'C'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2025 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Which one of the following register of 8085 microprocessor is not a part of the programming model?a)Instruction registerb)Memory address registerc)Status registerd)Temporary data registerCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following register of 8085 microprocessor is not a part of the programming model?a)Instruction registerb)Memory address registerc)Status registerd)Temporary data registerCorrect answer is option 'C'. Can you explain this answer?.
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