XMAC_C_S_MSK_REG
XMAC_REG_RD(handle, portn, XMAC_C_S_MSK_REG, &val);
XMAC_REG_WR(handle, portn, XMAC_C_S_MSK_REG, val);
XMAC_REG_WR(handle, portn, XMAC_C_S_MSK_REG, ~iconfig);
XMAC_C_S_MSK_REG,
