mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 473

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

Chapter 21
Timer/PWM Module (TPMV3)
21.1
Introduction
The TPM is a one-to-eight-channel timer system which supports traditional input capture, output compare,
or edge-aligned PWM on each channel. A control bit allows the TPM to be configured such that all
channels may be used for center-aligned PWM functions. Timing functions are based on a 16-bit counter
with prescaler and modulo features to control frequency and range (period between overflows) of the time
reference. This timing system is ideally suited for a wide range of control applications, and the
center-aligned PWM capability extends the field of application to motor control in small appliances.
21.1.1
TPM3 Module Interconnects
21.1.1.1
TPM3 to FTMx synchronization triggers
The TPM3CHn output of the TPM3 module can be used as one of the three FTM hardware synchronization
triggers. TPM3CH0 is connected to FTM1 and TPM3CH1 is connected to FTM2.
Typical usage is to setup the TPM3 channel as an output compare. The sync trigger occurs on the rising
edge of the TPM3 channel, so the “set output on compare” option (TPM3CnSC[ELSnB:ELSnA]=0b11)
must be used.
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor
21-1