Writes to the CnV register are ignored in input capture mode.
While in Debug mode, the input capture function works as configured. When a selected
edge event occurs, the FTM counter value, which is frozen because of Debug, is captured
into the CnV register and the CHF bit is set.
channel (n) input
synchronizer
1
is filter
enabled?
edge
detector
D
CLK
D
CLK
FTM input clock
filter
0
Note: The filter is only available for the channels 0, 1, 2, and 3 inputs.
Q
Q
FTM counter
selected
edge
channel (n)
interrupt
CnV
CHIE
CHF
channel (n)
Figure 41-14. Diagram for Input Capture Mode when FLTPS[3:0] = 0
channel (n) input
synchronizer
1
is filter
enabled?
D
CLK
D
CLK
FTM input clock
filter
0
Note: The filter is only available for the channels 0, 1, 2, and 3 inputs.
Q
Q
D
CLK
Q
FTM filter clock
edge
detector
FTM counter
selected
edge
channel (n)
interrupt
CnV
CHIE
CHF
channel (n)
Figure 41-15. Diagram for Input Capture Mode when FLTPS[3:0] ≠ 0
41.5.5.1 Filter for Input Capture Mode
The filter is only available on channels 0, 1, 2, and 3.
If FLTPS[3:0] = 0, the channel input after being synchronized by FTM input clock
(
) is the filter input.
Chapter 41 FlexTimer Module (FTM)
MWCT101xS Series Reference Manual, Rev. 3, 07/2019
NXP Semiconductors
1199
Summary of Contents for MWCT101 S Series
Page 2: ...MWCT101xS Series Reference Manual Rev 3 07 2019 2 NXP Semiconductors...
Page 42: ...MWCT101xS Series Reference Manual Rev 3 07 2019 42 NXP Semiconductors...
Page 50: ...Conventions MWCT101xS Series Reference Manual Rev 3 07 2019 50 NXP Semiconductors...
Page 70: ...Aliased bit band regions MWCT101xS Series Reference Manual Rev 3 07 2019 70 NXP Semiconductors...
Page 78: ...Pinout diagrams MWCT101xS Series Reference Manual Rev 3 07 2019 78 NXP Semiconductors...
Page 96: ...WCT101xS safety concept MWCT101xS Series Reference Manual Rev 3 07 2019 96 NXP Semiconductors...
Page 130: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 130 NXP Semiconductors...
Page 284: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 284 NXP Semiconductors...
Page 430: ...Functional Description MWCT101xS Series Reference Manual Rev 3 07 2019 430 NXP Semiconductors...
Page 472: ...Application Information MWCT101xS Series Reference Manual Rev 3 07 2019 472 NXP Semiconductors...
Page 528: ...Module clocks MWCT101xS Series Reference Manual Rev 3 07 2019 528 NXP Semiconductors...
Page 634: ...SRAM configuration MWCT101xS Series Reference Manual Rev 3 07 2019 634 NXP Semiconductors...
Page 818: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 818 NXP Semiconductors...
Page 960: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 960 NXP Semiconductors...
Page 992: ...ADC calibration scheme MWCT101xS Series Reference Manual Rev 3 07 2019 992 NXP Semiconductors...
Page 1348: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 1348 NXP Semiconductors...
Page 1366: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 1366 NXP Semiconductors...
Page 1514: ...Functional description MWCT101xS Series Reference Manual Rev 3 07 2019 1514 NXP Semiconductors...
Page 1726: ...Debug and security MWCT101xS Series Reference Manual Rev 3 07 2019 1726 NXP Semiconductors...
Page 1760: ...MWCT101xS Series Reference Manual Rev 3 07 2019 1760 NXP Semiconductors...