Mitsubishi Electric M32R Series User Manual page 374

MULTIJUNCTION TIMERS
10
10.4 TIO (Input/Output-related 16-bit Timer)
(6) Continuous output mode (without correction function)
In continuous output mode, the timer counts down clock pulses starting from the set value of the
counter and when the counter underflows, reloads it with the reload 0 register value. Thereafter,
this operation is repeated each time the counter underflows, thus generating consecutive pulses
in width of (reload 0 register set value + 1).
When after setting the counter and reload 0 register, the timer is enabled (by writing to the enable
bit in software or by external input), it starts counting down from the counter's set value
synchronously with the count clock and when the minimum count is reached, generates an
underflow. This underflow causes the counter to be reloaded with the content of reload 0 register
and start counting over again. Thereafter, this operation is repeated each time an underflow
occurs. To stop the counter, disable count by writing to the enable bit in software.
The F/F output waveform in continuous output mode is inverted at startup and upon underflow,
generating consecutive pulses until the timer stops counting. Also, an interrupt can be generated
each time the counter underflows.
10-104 Ver.0.10