SYSCON SYSPLLCLKUEN addressOffset = 0x044

This register updates the clock source of the system PLL with the new input clock after the SYSPLLCLKSEL register has been written to. In order for the update to take effect, first write a zero to the SYSPLLUEN register and then write a one to SYSPLLUEN.

Table 1. SYSCON registerName = SYSPLLCLKUEN addressOffset = 0x044
Bit Symbol Value Description Reset value
0 ENA   Enable system PLL clock source update 0
    0 No change  
    1 Update clock source  
31:1 - - Reserved -