| 摘要 |
In a method for testing a counter, the counter is first set at a predetermined initial value. Then, the counter is incremented in response to the clocks. The number of the clocks is counted until a carry is outputted from the counter to provide an actual counted value. The actual counted value is compared to a reference value, which is calculated in advance. And then, the counter is decided whether to be operating normally or not on the basis of the result of the comparison.
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