NXP Semiconductors MWCT101 S Series, Reference Manual

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Table 42-8. Mode=01 timer control bits (continued)
TSOT TROT TSOI Function Effect on Timer
0 1 1 Reloadable one-shot mode • If a trigger occurs before timeout, then
both timers reload and count down (as
shown); the timers stop after timeout
• A trigger assertion after timeout simply
reloads TMR_VAL into the timers
• The timers will not count again until
T_EN is set to 1 again
• Similar to Figure 42-8 .
1 0 0 • For generating periodic interrupts after
a predefined event (input trigger)
• Output triggers will have equal periods
After T_EN rises, the timers do not start until
the first trigger's rising edge
• Subsequent triggers will have no effect
• Similar to
Figure 42-9 .
1 0 1 • Triggered one-shot timer mode
• Output trigger period will depend on
input trigger
After T_EN rises, the timers do not start until
the first trigger's rising edge.
• The timer stops counting after a
timeout assertion (a timeout is
asserted)
• The timer does not start counting
again until a new trigger's rising edge
is detected
• Similar to Figure 42-10 .
1 1 0 • For repeated interrupts with reload
timer mode
• Output triggers will have unequal
periods
After T_EN rises, the timers do not start until
the first trigger's rising edge
• Subsequent triggers will cause the
timer to reload TMR_VAL into both
counters
• The output triggers will clear after a
reload, if asserted
• Similar to Figure 42-11 .
1 1 1 • For a non-periodic input trigger
• If input trigger is periodic and greater
than timer timeout, then this will be the
same as TROT=0 (which is triggered
one-shot timer mode; output trigger
period will depend on input trigger)
After T_EN rises, the timers do not start until
the first trigger's rising edge
• The timers stops counting after a
timeout assertion (a timeout is
asserted)
• A trigger's rising edge will cause the
timers to reload and then count down
• Similar to Figure 42-12 .
Functional description
MWCT101xS Series Reference Manual, Rev. 3, 07/2019
1328 NXP Semiconductors