The FTM is able to generate multiple triggers in one PWM period. Because each trigger
is generated for a specific channel, several channels are required to implement this
functionality. This behavior is described in the following figure.
NOTE
(a) CH0TRIG = 0, CH1TRIG = 0, CH2TRIG = 0, CH3TRIG = 0, CH4TRIG = 0, CH5TRIG = 0
(b) CH0TRIG = 1, CH1TRIG = 0, CH2TRIG = 0, CH3TRIG = 0, CH4TRIG = 0, CH5TRIG = 0
(c) CH0TRIG = 0, CH1TRIG = 0, CH2TRIG = 0, CH3TRIG = 1, CH4TRIG = 1, CH5TRIG = 1
(d) CH0TRIG = 1, CH1TRIG = 1, CH2TRIG = 1, CH3TRIG = 1, CH4TRIG = 1, CH5TRIG = 1
the beginning of new PWM cycles
MOD
FTM counter = C5V
FTM counter = C4V
FTM counter = C3V
FTM counter = C2V
FTM counter = C1V
FTM counter = C0V
CNTIN
(a)
(b)
(c)
(d)
0x10 0x11 0x12 0x13
0x14
0x15 0x16 0x17
System clock
FTM counter
Channel Trigger Output
0x14
CnV
Figure 39-76. Channel match trigger
39.4.21
Initialization trigger
If INITTRIGEN = 1, then the FTM generates a trigger when the FTM counter is updated
with the CNTIN register value in the following cases.
Functional description
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
1002 NXP Semiconductors
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