K60P100M100SF2RM Datasheet, PDF (1012/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Functional Description
CNT = MOD -> CNTIN
up counting mode
loading points if CNTMAX = 1 or CNTMIN = 1
CNT = (MOD - 0x0001) -> MOD
up-down counting mode
loading points if CNTMAX = 1
CNT = (CNTIN + 0x0001) -> CNTIN
loading points if CNTMIN = 1
Figure 39-207. Boundary Cycles and Loading Points
39.4.11.4 MOD Register Synchronization
The MOD register synchronization updates the MOD register with its buffer value. This
synchronization is enabled if (FTMEN = 1).
The MOD register synchronization can be done by either the enhanced PWM
synchronization (SYNCMODE = 1) or the legacy PWM synchronization (SYNCMODE
= 0). However, it is expected that the MOD register be synchronized only by the
enhanced PWM synchronization.
In the case of enhanced PWM synchronization, the MOD register synchronization
depends on SWWRBUF, SWRSTCNT, HWWRBUF and HWRSTCNT bits according to
this flowchart:
1012
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.