The following table describes the available Flex I/F modes of operation. Note the dependence of device speed grades on the available modes.
| MRMAC Configuration | CL74 | RS(528,514) | RS(544,514) | GT Line Rate (Gb/s) | Number of GT Lanes | GT Interface Data Width (Bits) | GT Data Rate (MHz) | Flex I/F Clock (Minimum) (MHz) | Supported Flex I/F Modes | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCS/BASE-R Mode | FlexE | OTN | FEC Only Mode | |||||||||
| 10GE | ✓ | – | – | 10.3125 | 1 | 16 | 644.5313 | 332.2656 | ✓ | ✓ | ✓ | – |
| 10GE | ✓ | – | – | 10.3125 | 1 | 32 | 322.2656 | 322.2656 | ✓ | ✓ | ✓ | ✓ |
| 25GE | ✓ | – | – | 25.78125 | 1 | 40 | 644.5313 | 322.2656 | ✓ | ✓ | ✓ | – |
| 25GE | – | ✓ | – | 25.78125 | 1 | 40 | 644.5313 | 322.2656 | ✓ | ✓ | ✓ | – |
| 25GE | ✓ | ✓ | – | 25.78125 | 1 | 80 | 322.2656 | 322.2656 | ✓ | ✓ | ✓ | ✓ |
| 40GE XLAUI-4 |
– | – | – | 10.3125 | 4 | 16 | 644.5313 | 322.2656 | ✓ | ✓ | ✓ | – |
| 40GE XLAUI-4 |
– | – | – | 10.3125 | 4 | 32 | 322.2656 | 322.2656 | ✓ | ✓ | ✓ | – |
| 50GE LAUI-2 |
– | ✓ | – | 25.78125 | 2 | 40 | 644.5313 | 322.2656 | ✓ | ✓ | ✓ | – |
| 50GE LAUI-2 |
– | ✓ | – | 25.78125 | 2 | 80 | 322.2656 | 322.2656 | ✓ | ✓ | ✓ | ✓ |
| 50GE 50GAUI-2 |
– | – | ✓ | 26.5625 | 2 | 40 | 664.0625 | 332.03125 | ✓ | ✓ | ✓ | – |
| 100GE CAUI-4 |
– | ✓ | – | 25.78125 | 4 | 40 | 644.5313 | 322.2656 | ✓ | ✓ | ✓ | – |
| 100GE CAUI-4 |
– | ✓ | – | 25.78125 | 4 | 80 | 322.2656 | 322.2656 | ✓ | ✓ | ✓ | ✓ |
| 100GE 100GAUI-4 |
– | – | ✓ | 26.5625 | 4 | 40 | 644.0625 | 332.03125 | ✓ | ✓ | ✓ | – |
| 100GE overclocking: 109.42GE – No FEC 109.42GE – RS(528,514) FEC 106.20GE – RS(544,514) FEC |
– | ✓ | ✓ | 28.21 | 4 | 80 | 352.625 | 352.625 | – | – | – | – |
| 100GE | – | – | ✓ | 53.125 | 2 | 160 | 332.03125 | 332.03125 | – | – | – | ✓ |
| FC32 | – | – | – | 28.05 | 1 | 80 | 350.625 | 350.625 | – | – | – | ✓ |