PLL1 Control Register
PLLE1 | PLL1 Enable. When one, and after a valid PLL1 feed, this bit will activate PLL1 and allow it to lock to the requested frequency. |
PLLC1 | PLL1 Connect. Setting PLLC to one after PLL1 has been enabled and locked, then followed by a valid PLL1 feed sequence causes PLL1 to become the clock source for the USB subsystem via the USB clock divider. See PLL1STAT register. |
RESERVED | Reserved, user software should not write ones to reserved bits. The value read from a reserved bit is not defined. |