SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
The power-management port (PMP) is not integrated for DPLLCTRL_USB_OTG_SS. The DPLL_USB_OTG_SS has no retention capabilities. This means, the DPLL digital power supply remains switched on during all modes of operation.
The low-power modes supported by DPLL_USB_OTG_SS are Idle-bypass low-power and MN-bypass modes, which are both characterized by:
For more details on the PLL settings and conditions necessary to enter Idle-bypass and MN-bypass low-power modes, see Section 28.2.4.3.6.4, USB3_PHY DPLL Idle-bypass low-power Mode , and Section 28.2.4.3.6.5, USB3_PHY DPLL MN-Bypass Mode.
DPLL_USB_OTG_SS is held in a similar low-power state (DCO and LDO switched off, with CLKDCOLDO = 0) after Power-up Reset, before first PLL_GO command has been software triggered on the PLL controller. See Section 28.2.4.3.6.1, USB3_PHY Clock Generator Power Up.