Microprocessor In an intel 8085A, which is the first machine cycle of an instruction? An op-code fetch cycle A memory read cycle An I/O read cycle A memory write cycle An op-code fetch cycle A memory read cycle An I/O read cycle A memory write cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor During the execution of the instruction, the ________tests the status and control flags and updates them based on the results of executing the instruction. None of these Execution Unit (EU) Both ‘c’ and ‘d’ Bus Interface Unit (BIU) None of these Execution Unit (EU) Both ‘c’ and ‘d’ Bus Interface Unit (BIU) ANSWER DOWNLOAD EXAMIANS APP
Microprocessor At the beginning of a fetch cycle, the contents of the program counter are transferred to memory data register. incremented by one. transferred to address bus. transferred to memory address register . transferred to memory data register. incremented by one. transferred to address bus. transferred to memory address register . ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The first machine cycle of an instruction is always A memory write cycle A memory read cycle An I/O read cycle A fetch cycle A memory write cycle A memory read cycle An I/O read cycle A fetch cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor RST0 - RST7 are the __________ in 8085. logical interrupts hardware interrupts software interrupts conditional interrupts logical interrupts hardware interrupts software interrupts conditional interrupts 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? (II) only (I), (II) & (III) (I) only (II) & (III) (II) only (I), (II) & (III) (I) only (II) & (III) ANSWER DOWNLOAD EXAMIANS APP
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