PLL45XX_SDIV_MASK
sdiv = (pll_con >> PLL45XX_SDIV_SHIFT) & PLL45XX_SDIV_MASK;
con0 &= ~(PLL45XX_SDIV_MASK << PLL45XX_SDIV_SHIFT);
(PLL45XX_SDIV_MASK << PLL45XX_SDIV_SHIFT));