There are two instances of Ethernet MAC - 10/100/1000Mbps EMAC0 and 10/100 EMAC1. Following table lists some of the important differences between the two.
| Feature |
Value (EMAC0) |
Value (EMAC1) |
|---|---|---|
| Speed of Operation | 10/100/1000 Mbps | 10/100 Mbps |
| PHY Interface | RGMII or RMII | RMII |
| Receive FIFO Size (in Bytes) | 2048 | 512 |
| Transmit FIFO Size (in Bytes) | 2048 | 1024 |
| Energy Efficient Ethernet (EEE) | Yes | No |
| PTP (IEEE 1588) | Yes | No |
| AV Feature | Yes | No |
| No of Tx Channels | 3 | 1 |
| No of Rx Channels | 3 | 1 |