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UCD3138128: Random phase between DPWM modules during resonant mode

Part Number: UCD3138128

When DPWM was in resonant mode, Phase-trigger register was not taken effect. For example,during DPWM0 and DPWM1  resonant mode, if Dpwm1Regs.DPWMCTRL0.bit.MSYNC_SLAVE_EN = 1; the phase between DPWM1 and DPWM2 was random and no sync-signal or fixed phase between the two DPWM modules. My question was that how to ensure the sync-signal or fixed phase between two DPWM modules during resonant mode.