PLL2650XX_KDIV_MASK
kdiv = (s16)(pll_con2 & PLL2650XX_KDIV_MASK);
pll_con2 &= ~(PLL2650XX_KDIV_MASK << PLL2650XX_KDIV_SHIFT);
pll_con2 |= ((~(rate->kdiv) + 1) & PLL2650XX_KDIV_MASK)