5.3.2. Function and operation of module

Two counters are defined as the minimum provided within a system, although this can easily be expanded. The same principle of simple expansion has been applied to the register configuration, allowing more complex counters to be used.

Two modes of operation are available:

Free-running mode

The counter wraps after reaching its zero value, and continues to count down from the maximum value. This is the default mode.

Periodic timer mode

The counter generates an interrupt at a constant interval, reloading the original value after wrapping past zero.

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