PLL0831X_KDIV_SHIFT
kdiv = (s16)((pll_con5 >> PLL0831X_KDIV_SHIFT) & PLL0831X_KDIV_MASK);
pll_con5 &= ~(PLL0831X_KDIV_MASK << PLL0831X_KDIV_SHIFT);
pll_con5 |= ((u16)rate->kdiv << PLL0831X_KDIV_SHIFT);