2.3.4.1 Traffic Class
Traffic Class enables you to set your Traffic Class and corresponding register bits, as shown in
Table 2-5. The traffic class is required by the PCI Express packet header. Its
value determines the relative priority of a given transaction as it traverses the PCIe
link. You can use the Traffic Class value to create a priority scheme for different
packets.
- TC 0 (Default)
- TC 1
- TC 2
- TC 3
- TC 4
- TC 5
- TC 6
- TC 7
| Traffic Class | Bit Setting for WindowX_2[4:2] |
|---|---|
| TC 0 | 000 |
| TC 1 | 001 |
| TC 2 | 010 |
| TC 3 | 011 |
| TC 4 | 100 |
| TC 5 | 101 |
| TC 6 | 110 |
| TC 7 | 111 |