Microprocessor Program counter in a digital computer Points the memory address of the next instruction to be fetched. Counts the number of times a subroutine is called. Counts the number of times the loops are executed. Counts the numbers of programs run in the machine. Points the memory address of the next instruction to be fetched. Counts the number of times a subroutine is called. Counts the number of times the loops are executed. Counts the numbers of programs run in the machine. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Assertion(A): Ready signal of microprocessor is used to detect whether a peripheral is ready for the data transfer or not. Reason(R): In the microprocessor during data transfer operations, the wait states are added by forcing the ready signal low. Both A & R are true and R is the correct explanation of A. A is false but R is true. Both A & R are true but R is not the correct explanation of A . A is true but R is false. Both A & R are true and R is the correct explanation of A. A is false but R is true. Both A & R are true but R is not the correct explanation of A . A is true but R is false. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor While using a frequency counter for measuring frequency, two modes of measurement are possible: Period time Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4MHz, the crossover frequency is given by 2 Mhz. 8 Mhz. 1Khz. 2 Khz. 2 Mhz. 8 Mhz. 1Khz. 2 Khz. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The microprocessor may be made to exit from HALT state by asserting RESTART READY line any of the five interrupt lines A or B or HOLD line RESTART READY line any of the five interrupt lines A or B or HOLD line ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The multiplexing of address bus and data buses is used in never multiplexed. none of these. depends on the internal architecture. all the microprocessors. never multiplexed. none of these. depends on the internal architecture. all the microprocessors. 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 POP PSW PUSH PSW PUSH A PUSH SP POP PSW PUSH PSW ANSWER DOWNLOAD EXAMIANS APP
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