SNIU028D February 2016 – September 2020 UCD3138 , UCD3138064 , UCD3138064A , UCD3138128 , UCD3138A , UCD3138A64
There are two other registers – DPWMAUTOMAX and DPWMAUTOMID, which have many of the same bits as control register 0.
These two Auto Mode Switching (AMS) registers are used in topologies where the DPWM mode changes automatically as the filter output changes, such as resonant and phase shifted full bridge. See Section 2.11.2 on the auto switch level registers for more information on mode switching.
Not all bits in DPWMCTRL0 are duplicated in the auto registers. The bits that occur only in DPWMCTRL0 are used for all modes. Bits were selected based on mode switching needs for LLC and PSFB topologies. The following bitfield descriptions tell whether each field occurs in the auto mode switching registers.