SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
This section identifies the operating modes supported by the DPLL and the control bit fields to set its operating modes. For an explanation of the DPLL operating modes, and associated control and status features, see Section 3.6.3.3.3, Enable Control, Status, and Low-Power Operation Mode, and Section 3.6.3.3.4, DPLL Power Modes.
Table 3-65 lists the operating modes supported by the DPLL.
Low-Power Stop | Fast-Relock Stop | Low-Power Bypass | Fast-Relock Bypass | Lock |
---|---|---|---|---|
Not available | Not available | Available | Available | Available |
Table 3-66 lists the control bit fields for the operating mode control of the DPLL.
Parameter Name | Control Bit Field |
---|---|
Low-Power Mode Control | CM_CLKMODE_DPLL_MPU[10] DPLL_LPMODE_EN |
Manual Mode Control | CM_CLKMODE_DPLL_MPU[2:0] DPLL_EN |
Auto Mode Control | CM_AUTOIDLE_DPLL_MPU[2:0] AUTO_DPLL_MODE |
The user software must ensure that the MPU voltage domain is on before programming DPLL_MPU. This can be ensured by performing a forced wakeup (CLKCTRL= SW_WKUP) on MPU domain. When software detects that the domain is "ON", DPLL_MPU can be programmed.