Microprocessor Identify the programmable DMA controller from the following 8279 8253 8257 8251 8279 8253 8257 8251 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value? ORA A SUB A MOV A, 00H CLR A ORA A SUB A MOV A, 00H CLR A ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which of the following is not treated as hexadecimal constant by assembler in 8085? 6 AFH 64 H 45 H 234 6 AFH 64 H 45 H 234 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor While INX B instruction execute, only carry and zero flags will be affected only carry flag will be affected no flags will be affected all flags will be affected only carry and zero flags will be affected only carry flag will be affected no flags will be affected all flags will be affected ANSWER DOWNLOAD EXAMIANS APP
Microprocessor HLDA signal in 8085 performs the following operation: 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. 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. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Identify the communication interfacing device from the following 8155 8251 8255 8257 8155 8251 8255 8257 ANSWER DOWNLOAD EXAMIANS APP
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