SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
DE mode is entered when TRIPH_OR_TRIPL signal from the selected comparator (CMPSS) goes high. Once the diode emulation mode is entered, typically TRIPH or TRIPL are set and cleared in a sequence (at a given instance of time, TRIPH is high or TRIPL is high – never both) until the current settles within the threshold band.
Once the DEACTIVE flag is set, the thresholds on CMPSS are changed to an alternate set of thresholds, and also ePWMA/B out of DE function are being controlled by the DEACTCTL register settings. Figure 22-55 demonstrates an example timing diagram illustrating entry into DE mode.