In mode 0, Interrupt on terminal count of 8253, if the gate pin is made low while counter is decrementing, which one of the following operations will follow?
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
Answer: Option C
Related Questions on Microprocessors and Microcontrollers
A. Circuit A has more gates than circuit B
B. Circuit B has more gates than circuit A
C. Circuit A has the same number of gates as circuit B
D. None of the above
For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].
A. Less than
B. Greater than
C. The same as
D. Cannot be determined

Join The Discussion