MCQOPTIONS
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MCQOPTIONS
| 1. |
A finite state machine (FSM) is implemented using the D flip-flops A and B, and logic gates, as shown in the figure below. The four possible states of the FSM are QAQB = 00,01,10, and 11.Assume that XIN is held at a constant logic level throughout the operation of the FSM. When the FSM is initialized to the state QAQB = 00 and clocked, after a few clock cycles, it starts cycling through |
| A. | all of the four possible states if XIN = 1 |
| B. | three of the four possible states if XIN = 0 |
| C. | only two of the four possible states if XIN = 1 |
| D. | only two of the four possible states if XIN = 0 |
| Answer» E. | |