Enhanced PWM - Steering Synchronization

The Enhanced PWM Steering can control when the PWM signal will update via the Synchronization settings.
The STRxSYNC bit of the PSTRxCON register provides the user two options for when the steering event will occur.

When the STRxSYNC bit is ‘0’, the steering event will happen at the end of the instruction that writes to the PSTRxCON register. In this case the output signal at the Px<D:A> pins may be an incomplete PWM waveform. This operation is useful when the user firmware needs to immediately remove a PWM signal from the pin.

When the STRxSYNC bit is ‘1’, the effective steering update will happen at the beginning of the next PWM period. In this case steering ON/OFF of the PWM output will always produce a complete PWM waveform.

PSTRxCON: PWM Steering Control Register

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
STRxSYNC STRxD STRxC STRxB STRxA
bit 7 bit 0

bit 4

STRxSYNC: Steering Sync bit

1 = Output steering update occurs on next PWM period
0 = Output steering update occurs at the beginning of the instruction cycle boundary

© 2024 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.