PLL3_SW_CLK_SEL=PLL3_SW_CLK_SEL_0
CCM Clock Switcher Register
PLL3_SW_CLK_SEL | Selects source to generate pll3_sw_clk. This bit should only be used for testing purposes. 0 (PLL3_SW_CLK_SEL_0): pll3_main_clk 1 (PLL3_SW_CLK_SEL_1): pll3 bypass clock |