PLL_USE_FRAC_FB_DIV
if ((pll->flags & PLL_USE_FRAC_FB_DIV) != 0) {
pll->flags |= PLL_USE_FRAC_FB_DIV;
pll->flags |= PLL_USE_FRAC_FB_DIV;
pll->flags |= PLL_USE_FRAC_FB_DIV;
pll->flags |= PLL_USE_FRAC_FB_DIV;