mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 259

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

FlexTimer Module (FTMV1)
If REINIT = 1, then this synchronization is made on the next enabled trigger event. If the trigger event was
a software trigger, then the SWSYNC bit is cleared
(Figure
11-71). If the trigger event was a hardware
trigger, then the TRIGn bit is cleared
(Figure
11-72).
system clock
write 1 to SWSYNC bit
SWSYNC bit
software trigger event
FTM counter is reset and
channels output is forced to its initial value
Figure 11-71. FTM counter synchronization when (REINIT = 1) and (software trigger was used)
system clock
write 1 to TRIG0 bit
TRIG0 bit
trigger 0 event
FTM counter is reset and
channels output is forced to its initial value
Figure 11-72. FTM counter synchronization when (REINIT = 1) and (a hardware trigger was used)
11.4.11.8 Summary of PWM synchronization
Table 11-23
shows the conditions are required to update the registers FTMxCNTINH:L, FTMxMODH:L,
FTMxCnVH:L, FTMxCNTH:L, FTMxOUTMASK and trigger bits (SWSYNC and TRIG[2:0]) with their
write buffer by PWM synchronization.
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor
11-59