Motorola DSP56305 User Manual page 354

Timer/Event Counter
Timer Architecture
The timers can be used to generate timed pulses, to capture an event, or as pulse width
modulators. When a timer signal (TIOn) is used as an input, the timer is functioning as
an external event counter or is measuring external pulse width or signal period. When a
timer signal (TIOn) is used as an output, the timer is functioning as a timer, a watchdog
timer, or a pulse width modulator, and TIOn becomes the timer pulse.
Timer modes are controlled by the TC[3:0] bits of the Timer Control/Status Register
(TCSR). For a listing of the timer modes, see Section 9.4. For a description of their
operation, see Section 9.4.1.
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