INTRODUCTION TO MICROPEOCESSOR
MICROPROCESSOR BASICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Address bus is Unidirectional because the microprocessor is addressing a specific memory location. No outside devices can not write into Microprocessor. Data bus is Bidirectional because the Microprocessor can read data from memory or write data to the memory. Normally Control bus is unidirectional.
Detailed explanation-2: -The register in the 8085A that is used to keep track of the memory address of the next opcode to be run in the program is the program counter.
Detailed explanation-3: -The processor contains three sections called the Arithmetic Logic Unit (ALU), the Control Unit and Registers.
Detailed explanation-4: -Which register in the processor is single directional? Explanation: The MAR is single directional as it just takes the address from the processor bus and passes it to the external bus.