DBATU Model MCQ – Microcontroller And Its ApplicationsSpread the love Views: 61[adinserter block="1"] Welcome to your Microcontroller And Its Applications, dated April 20, 2021 1. Which operations are performed by the bit manipulating instructions of boolean processor?Deselect AnswerComplement bitClear bitSet bitAll of the above 2. Which control signal/s is/are generated by timing and control unit of 8051 microcontroller in order to access the off-chip devices apart from the internal timings?Deselect AnswerALEPSEN(bar)RD & WR(bar)All of the above 3. How many registers can be utilized to write the programs by an effective selection of register bank in program status word (PSW)?Deselect Answer8163264 4. Which among the below mentioned devices of MCS-51 family does not possess two 16 -bit timers/counters?Deselect Answer803180528751All of the above 5. Which operations are performed by stack pointer during its incremental phase?Deselect AnswerPushPopReturnAll of the above 6. Which is the only register without internal on-chip RAM address in MCS-51?Deselect AnswerStack PointerProgram CounterData PointerTimer Register 7. What is the default value of stack once after the system undergoes the reset condition?Deselect Answer07H08H09H00H 8. Which register bank is supposed to get selected if the values of register bank select bits RS1 & Rs0 are detected to be '1' & '0' respectively?Deselect AnswerBank 0Bank 1Bank 2Bank 3 9. Which locations of 128 bytes on-chip additional RAM are generally reserved for special functions?Deselect Answer80H to 0FFH70H to 0FFH90H to 0FFH60H to 0FFH 10. What is the required baud rate for an efficient operation of serial port devices in 8051 microcontroller?Deselect Answer1200240048009600 Please fill in the comment box below. [adinserter block="1"]Spread the love
