FTMx_DEADTIME field descriptions (continued)
Field Description
10 Divide the system clock by 4.
11 Divide the system clock by 16.
DTVAL Deadtime Value
Selects the deadtime insertion value for the deadtime counter. The deadtime counter is clocked by a
scaled version of the system clock. See the description of DTPS.
Deadtime insert value = (DTPS × DTVAL).
DTVAL selects the number of deadtime counts inserted as follows:
When DTVAL is 0, no counts are inserted.
When DTVAL is 1, 1 count is inserted.
When DTVAL is 2, 2 counts are inserted.
This pattern continues up to a possible 63 counts.
This field is write protected. It can be written only when MODE[WPDIS] = 1.
39.3.16 FTM External Trigger (FTMx_EXTTRIG)
This register:
• Indicates when a channel trigger was generated
• Enables the generation of a trigger when the FTM counter is equal to its initial value
• Selects which channels are used in the generation of the channel triggers
Several channels can be selected to generate multiple triggers in one PWM period. See
Channel trigger output and Initialization trigger.
Channels 6 and 7 are not used to generate channel triggers.
Address:
Base address + 6Ch offset
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R
Reserved
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Chapter 39 FlexTimer Module (FTM)
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 925
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