PLLA9FRACM_MDIV_SHIFT
mdiv = (pll_con >> PLLA9FRACM_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
old_mdiv = (pll_con >> PLLA9FRACM_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
mdiv_shift = PLLA9FRACM_MDIV_SHIFT;