29.4.6 Hardware Limit Mode
The Limit mode of operation is controlled by the LIMIT bit in the TUxyCON1 register. Setting the LIMIT bit will cause the
counter/timer value to not advance when the TUxyTMR counter register value equals the
value in the TUxyPR period register (even though the timer is still “running”). If the
LIMIT bit is cleared, the counter/timer will continue to count through the PR match and
roll over at the maximum value of the TUxyTMR counter register. The LIMIT bit is not
synchronized to the counter/timer clock and does not need to be changed when the ON bit
is set.
Important:
- This bit is relevant when
RESET =
‘b00
(No hardware Reset) and counter equals PR. - The effect of Limit mode is to prevent the counter from exceeding PR value. Reset and CLR events are not prevented from clearing the counter.