PLL2650X_K_SHIFT
kdiv = (s16)((pll_con1 >> PLL2650X_K_SHIFT) & PLL2650X_K_MASK);
con1 &= ~(PLL2650X_K_MASK << PLL2650X_K_SHIFT);
con1 |= ((rate->kdiv & PLL2650X_K_MASK) << PLL2650X_K_SHIFT);