Microprocessor Program counter in a digital computer 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. 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. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Total number of instructions in 8085 microprocessor assembly language is 245 246 244 247 245 246 244 247 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 1Khz. 2 Khz. 2 Mhz. 8 Mhz. 1Khz. 2 Khz. 2 Mhz. 8 Mhz. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The address bus of any microprocessor is always Either unidirectional or bi-directional Bi-directional Unidirectional None Either unidirectional or bi-directional Bi-directional Unidirectional None ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between T3 & T4 T1 & T2 T4 & T1 T2 & T3 T3 & T4 T1 & T2 T4 & T1 T2 & T3 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The operating modes of 8255 A are called Mode 0, mode 1 and mode 2 Mode 0 and mode 1 Mode 0 and mode 2 Mode 0, mode 2 and mode 3 Mode 0, mode 1 and mode 2 Mode 0 and mode 1 Mode 0 and mode 2 Mode 0, mode 2 and mode 3 ANSWER DOWNLOAD EXAMIANS APP