SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
The DPLL has a manual mode control bit field, which allows the setting of the different operating modes of the DPLL. When the DPLL is switched to lock mode, the current values of the multiplication ratio (M) and the division ratio (N) are latched in the DPLL. The DPLL then starts the lock or relock sequence to synthesize the corresponding output frequency clock.
The status of the synthesized clock output of the DPLL is represented by the CLKOUT status bit. It can be gated or active.
The type A DPLLs can be switched to low-power operation mode (also called LPMODE) to optimize DPLL power consumption when the input and output clock frequencies are low. This mode can be software-enabled using the low-power mode control bit of the DPLL.
It must be enabled only if both of the following operating conditions are satisfied:
Where: