Microprocessor Identify the communication interfacing device from the following 8255 8251 8155 8257 8255 8251 8155 8257 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which of the following is not true during the execution of an interrupt service routine, which does not contain any EI instructions all interrupts except non-maskable interrupt are disabled the microprocessor cannot be interrupted by any mask able interrupt the microprocessor cannot be interrupted by any interrupt the microprocessor can be interrupted by a non-mask able interrupt all interrupts except non-maskable interrupt are disabled the microprocessor cannot be interrupted by any mask able interrupt the microprocessor cannot be interrupted by any interrupt the microprocessor can be interrupted by a non-mask able interrupt ANSWER DOWNLOAD EXAMIANS APP
Microprocessor A mask programmed ROM is programmed by the user erasable electrically erasable and programmable programmed at the time of fabrication programmed by the user erasable electrically erasable and programmable programmed at the time of fabrication ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations 1000 H and 1001 H 0FFE H and 0FFF H 0FFF H and 0FFE H 1000 H and 0FFF H 1000 H and 1001 H 0FFE H and 0FFF H 0FFF H and 0FFE H 1000 H and 0FFF H ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The output data lines of microprocessor and memories are usually tristated because The data line can be multiplexed for both input and output More than one device can transmit over the data bus at the same time It increases the speed of data transfer over the data bus More than one device can transmit information over the data bus by enabling only one device at a time The data line can be multiplexed for both input and output More than one device can transmit over the data bus at the same time It increases the speed of data transfer over the data bus More than one device can transmit information over the data bus by enabling only one device at a time ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In order to save accumulator value on the stack, which of the following instruction may be used PUSH A PUSH SP PUSH PSW POP PSW PUSH A PUSH SP PUSH PSW POP PSW ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS