XMAC_XIF_LED_POLARITY
val |= XMAC_XIF_LED_POLARITY;
val &= ~XMAC_XIF_LED_POLARITY;
val |= XMAC_XIF_LED_POLARITY;
val &= ~XMAC_XIF_LED_POLARITY;
val |= XMAC_XIF_LED_POLARITY;
val &= ~XMAC_XIF_LED_POLARITY;