Microprocessor The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following? Machine cycle Memory cycle Clock cycle Instruction cycle Machine cycle Memory cycle Clock cycle Instruction cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor An 8-bit microprocessor can have ………….. address lines. cannot be predicted 16 8 32 cannot be predicted 16 8 32 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor At the beginning of a fetch cycle, the contents of the program counter are incremented by one. transferred to memory address register . transferred to memory data register. transferred to address bus. incremented by one. transferred to memory address register . transferred to memory data register. transferred to address bus. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor HLDA signal in 8085 performs the following operation: 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. 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. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which of the following pair of gates can form a latch? A cross coupled NAND/OR A pair of cross copled AND A pair of cross coupled NAND A pair of cross coupled OR A cross coupled NAND/OR A pair of cross copled AND A pair of cross coupled NAND A pair of cross coupled OR ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In a vector interrupt the branch address is assigned to a fixed location in memory. the branch address is obtained from a register in the processor. none. the interrupting source supplies the branch information to the processor through an interrupt vector. the branch address is assigned to a fixed location in memory. the branch address is obtained from a register in the processor. none. the interrupting source supplies the branch information to the processor through an interrupt vector. ANSWER DOWNLOAD EXAMIANS APP
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