NXP Semiconductors K22F series, Reference Manual, Page: 903 / 1407

39.3.3 Status And Control (FTMx_SC)
SC contains the overflow status flag and control bits used to configure the interrupt
enable, FTM configuration, clock source, and prescaler factor. These controls relate to all
channels within this module.
Address: Base a 0h offset
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R
0
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
0
TOF
TOIE
CPWMS
CLKS PS
W
0
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
FTMx_SC field descriptions
Field Description
31–8
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
7
TOF
Timer Overflow Flag
Set by hardware when the FTM counter passes the value in the MOD register. The TOF bit is cleared by
reading the SC register while TOF is set and then writing a 0 to TOF bit. Writing a 1 to TOF has no effect.
If another FTM overflow occurs between the read and write operations, the write operation has no effect;
therefore, TOF remains set indicating an overflow has occurred. In this case, a TOF interrupt request is
not lost due to the clearing sequence for a previous TOF.
0 FTM counter has not overflowed.
1 FTM counter has overflowed.
Table continues on the next page...
Chapter 39 FlexTimer Module (FTM)
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 903