Microprocessors And Microcontrollers - Practice Test

(A) Counter stops and cleared to '0' and starts decrementing when gate pin is made high

(B) Counter stops and thereafter it increments till gate pin = '1' high

(C) Counter stops, the current contents are held and the decrement operation resume only after gate pin is made high

(D) Counter stops, the current contents are held for one clock cycle and the decrement operation resume

(C) Counter stops, the current contents are held and the decrement operation resume only after gate pin is made high

(A) 8193

(B) 8192

(C) 8191

(D) 8000

(B) 8192

(A) Forward 255 and Backward 256

(B) Forward 127 and Backward 128

(C) Forward 31 and Backward 32

(D) Forward 15 and Backward 16

(B) Forward 127 and Backward 128

(A) converts binary to BCD

(B) converts BCD to binary

(C) adds contents of accumulator to accumulator

(D) decrements accumulator

(A) converts binary to BCD

(A) I/O interfaces and instruction decoding

(B) Memory configuration and I/O interfaces

(C) Data bus width and clock speed

(D) Memory configuration and instruction decoding

(B) Memory configuration and I/O interfaces

Microprocessors And Microcontrollers - Study Mode