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. Indicates that another master is requesting the use of the address and data buses. Hold the data in the accumulator until the microprocessor is turned OFF. 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. Indicates that another master is requesting the use of the address and data buses. Hold the data in the accumulator until the microprocessor is turned OFF. 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
Microprocessor Consider the following I) Sign flag II) Trap flag III) Parity flag IV) Auxiliary carry flag. Which one of the above flags is/are present in 8085 microprocessor? (II) & (III) (I) ,(III) & (IV) (I) only (I) & (II) (II) & (III) (I) ,(III) & (IV) (I) only (I) & (II) ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Total number of modes the 8253 can work 8 6 4 12 8 6 4 12 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which of the following conditions is not allowed in an RS latch? R is asserted, S is negated R is negated, S is negated R is asserted, S is asserted R is negated, S is asserted R is asserted, S is negated R is negated, S is negated R is asserted, S is asserted R is negated, S is asserted ANSWER DOWNLOAD EXAMIANS APP
Microprocessor EPROMs are preferred for storing programs while developing new microprocessor based system. Because of their all the above characteristic non-volatile characteristic random access characteristic erasable and programmable characteristic all the above characteristic non-volatile characteristic random access characteristic erasable and programmable characteristic ANSWER DOWNLOAD EXAMIANS APP
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