M_MAC_INT_CHANNEL
(M_MAC_INT_CHANNEL << S_MAC_TX_CH0) |
(M_MAC_INT_CHANNEL << S_MAC_RX_CH0));
if (isr & (M_MAC_INT_CHANNEL << S_MAC_TX_CH0)) {
if (isr & (M_MAC_INT_CHANNEL << S_MAC_RX_CH0)) {