Microprocessor Number of Hex digits needed to represent the 20-bit address of a memory location are 16 20 5 4 16 20 5 4 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor How can we make any bit of a register “0”? OR that bit with “0” and remaining bits with “1”. AND that bit with “0” and remaining bits with “1”. AND that bit with “1” and remaining bits with “0”. OR that bit with “1” and remaining bits with “0”. OR that bit with “0” and remaining bits with “1”. AND that bit with “0” and remaining bits with “1”. AND that bit with “1” and remaining bits with “0”. OR that bit with “1” and remaining bits with “0”. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The first machine cycle of an instruction is always A memory write cycle A memory read cycle A fetch cycle An I/O read cycle A memory write cycle A memory read cycle A fetch cycle An I/O read cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The multiplexing of address bus and data buses is used in never multiplexed. all the microprocessors. depends on the internal architecture. none of these. never multiplexed. all the microprocessors. depends on the internal architecture. none of these. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Consider the following statements: In 8085 microprocessor, data-bus and address bus are multiplexed in order to I)Increase the speed of microprocessor. II)Reduce the number of pins. III)Connect more peripheral chips. Which of these statements is/are correct? (I) only (I), (II) & (III) (II) & (III) (II) only (I) only (I), (II) & (III) (II) & (III) (II) only ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In microprocessor based system DMA refers to direct memory access for the I/O device direct memory access for the user None of these direct memory access for microprocessor direct memory access for the I/O device direct memory access for the user None of these direct memory access for microprocessor ANSWER DOWNLOAD EXAMIANS APP
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