Chapter 39
FlexTimer Module (FTM)
39.1 Introduction
NOTE
For the chip-specific implementation details of this module's
instances, see the chip configuration information.
The FlexTimer module (FTM) is a two-to-eight channel timer that supports input capture,
output compare, and the generation of PWM signals to control electric motor and power
management applications. The FTM time reference is a 16-bit counter that can be used as
an unsigned or signed counter.
NOTE
The number of channels supported can vary for each instance of
the FTM module on a chip. See the chip-specific FTM
information to see how many channels are supported for each
module instance. For example, if a module instance supports
only six channels, references to channel numbers 6 and 7 do not
apply for that instance.
39.1.1
FlexTimer philosophy
The FlexTimer is built upon a simple timer, the Timer PWM Module – TPM, used for
many years on our HCS08 family of 8-bit microcontrollers. The FlexTimer extends the
functionality to meet the demands of motor control, digital lighting solutions, and power
conversion, while providing low cost and backwards compatibility with the TPM module.
Several key enhancements are made:
• Signed up counter
• Deadtime insertion hardware
• Fault control inputs
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 891
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