SPNS253A May 2018 – September 2019 TMS570LC4357-EP
PRODUCTION DATA.
This trip zone input is dedicated to a clock failure on the device. That is, this trip zone input is asserted whenever an oscillator failure or a PLL slip is detected on the device. The applciation can use this trip zone input for each ePWMx module to prevent the external system from going out of control when the device clocks are not within expected range (system running at limp clock).
The oscillator failure and PLL slip signals used for this trip zone input are taken from the status flags in the system module. These level signals are set until cleared by the application.