MAC PFC Priority-based Pause Frame Support

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

 

TIP:   Refer to the IEEE Std 802.1Qbb for a full description of priority-based pause operation.

The controller supports PFC priority-based pause transmission and reception. Before PFC pause frames can be received, bit [16] of the network control register must be set. The start of a PFC pause frame is shown in Table: PFC Priority-based Pause Frame Information.

Table 34-12:      PFC Priority-based Pause Frame Information

Destination Address

Source Address

Type

(MAC Control Frame)

Pause Opcode

Priority Enable Vector

Pause Times

0x0180C2000001

6 bytes

0x8808

0x0101

2 bytes

8 x 2 bytes