SPRUJB6B November 2024 – May 2025 AM2612
Shadow registers for MIN and MAX values enable the application to change these values dynamically as the PWM configuration changes. However, shadow to active loading need to happen at certain point of time to keep these in sync with ePWM module. Global load strobe (EPWMx.GLDSTRB) from ePWM is used for this purpose. Since a given eCAP module can be associated with any ePWM module, a mux is provided select one of EPWMx.GLDSTRB in a system.
Shadow registers are copied to active registers on following events:
Figure 7-314 ECAP Signal Monitoring Unit Shadow Control