When a receive packet is identified as either a global or priority pause control packet, the
received quanta value(s) will be extracted accordingly. Those quanta values are
presented on the DCMAC Subsystem’s rx_pause_quanta{0..8} buses, along
with rx_pause_valid that qualifies the data, and
rx_pause_valid_id that identifies the receiving port. Priority
pause information is relayed via quanta values 0 to 7, while global pause information is
relayed on the rx_pause_quanta8 bus. The pause control parsing logic is always active,
and any packet that meets the criteria specified above in ‘Identifying Pause Packets’
will have its quanta information relayed on the rx_pause_quanta buses.
It is true regardless of the setting of
c{0..5}_ctl_rx_pause_enable.