RMIXL_PCIX_ECFG_XLR_MBLE
mble = RMIXL_PCIXREG_READ(RMIXL_PCIX_ECFG_XLR_MBLE);
RMIXL_PCIXREG_WRITE(RMIXL_PCIX_ECFG_XLR_MBLE, 0);