Microprocessor The first machine cycle of an instruction is always A memory read cycle A memory write cycle A fetch cycle An I/O read cycle A memory read cycle A memory write cycle A fetch cycle An I/O read cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In 8085 name/names of the 16 bit registers is/are program counter. both A and B. none of these. stack pointer. program counter. both A and B. none of these. stack pointer. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The multiplexing of address bus and data buses is used in never multiplexed. depends on the internal architecture. none of these. all the microprocessors. never multiplexed. depends on the internal architecture. none of these. all the microprocessors. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The operating modes of 8255 A are called Mode 0 and mode 1 Mode 0 and mode 2 Mode 0, mode 1 and mode 2 Mode 0, mode 2 and mode 3 Mode 0 and mode 1 Mode 0 and mode 2 Mode 0, mode 1 and mode 2 Mode 0, mode 2 and mode 3 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor At the beginning of a fetch cycle, the contents of the program counter are transferred to address bus. 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. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor S0 and S1 pins are used for None of these serial communication acknowledging the interrupt indicating the processor’s status None of these serial communication acknowledging the interrupt indicating the processor’s status ANSWER DOWNLOAD EXAMIANS APP
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