MAC Pause Frames

Versal Adaptive SoC Technical Reference Manual (AM011)

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1.6 English

The start of an IEEE Std 802.3 pause frame includes:

  • Destination address: 0x0180_C200_0001
  • Source Address: 6 bytes
  • Type (MAC control frame): 0x8808
  • Pause opcode: 0x0001
  • Pause time: 2 bytes
The controller supports both a hardware controlled pause of the transmitter upon reception of a pause frame and a hardware generated pause frame transmission.
Tip: See Clause 31, and Annex 31A and 31B of the IEEE Std 802.3 for a full description of pause operation.