Microprocessor Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value? ORA A SUB A CLR A MOV A, 00H ORA A SUB A CLR A MOV A, 00H ANSWER DOWNLOAD EXAMIANS APP
Microprocessor How many bytes in a zero memory page should be reserved for vectors used by RST instructions? 16. 32. 128. 64. 16. 32. 128. 64. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor A structure that stores a number of bits taken “together as a unit” is a Register Mux Decoder Gate Register Mux Decoder Gate ANSWER DOWNLOAD EXAMIANS APP
Microprocessor A combinational PLD with a fixed AND array and a programmable OR array is called a PLA PAL PLD PROM PLA PAL PLD PROM ANSWER DOWNLOAD EXAMIANS APP
Microprocessor If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory) Halves Increases by 2^(address bits)/addressability Remains unchanged Doubles Halves Increases by 2^(address bits)/addressability Remains unchanged Doubles ANSWER DOWNLOAD EXAMIANS APP
Microprocessor HLDA signal in 8085 performs the following operation: Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle. Hold the data in the accumulator until the microprocessor is turned OFF. Indicates that another master is requesting the use of the address and data buses. Indicates that the CPU has not received the HOLD request. Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle. Hold the data in the accumulator until the microprocessor is turned OFF. Indicates that another master is requesting the use of the address and data buses. Indicates that the CPU has not received the HOLD request. ANSWER DOWNLOAD EXAMIANS APP
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