PLL46XX_SDIV_MASK
sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK;
con0 &= ~(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT);
(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT));
(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT) |