Altera 10-Gbps Ethernet MAC MegaCore Function - Manual (Page 136)

Chapter 9: Interface Signals 9–17
February 2014 Altera Corporation 10-Gbps Ethernet MAC MegaCore Function User Guide
avalon_st_rx_pfc_status_data[]
(1)
Output n
The signal width is determined by the Number of PFC
priorities parameter, n = 2 x number priority queues
enabled.
■ Bit 0: When asserted, this bit indicates that an XON
request is received for priority queue 0.
■ Bit 1: When asserted, this bit indicates that an XOFF
request is received for priority queue 0.
■ Bit 2: When asserted, this bit indicates that an XON
request is received for priority queue 1.
■ Bit 3: When asserted, this bit indicates that an XOFF
request is received for priority queue 1.
■ Bit 4:When asserted, this bit indicates that an XON
request is received for priority queue 2.
■ Bit 5: When asserted, this bit indicates that an XOFF
request is received for priority queue 2.
■ Bit 6: When asserted, this bit indicates that an XON
request is received for priority queue 3.
■ Bit 7: When asserted, this bit indicates that an XOFF
request is received for priority queue 3.
■ Bit 8: When asserted, this bit indicates that an XON
request is received for priority queue 4.
■ Bit 9: When asserted, this bit indicates that an XOFF
request is received for priority queue 4.
■ Bit 10: When asserted, this bit indicates that an XON
request is received for priority queue 5.
■ Bit 11: When asserted, this bit indicates that an XOFF
request is received for priority queue 5.
■ Bit 12: When asserted, this bit indicates that an XON
request is received for priority queue 6.
■ Bit 13: When asserted, this bit indicates that an XOFF
request is received for priority queue 6.
■ Bit 14: When asserted, this bit indicates that an XON
request is received for priority queue 7.
■ Bit 15: When asserted, this bit indicates that an XOFF
request is received for priority queue 7.
Note to Table 9–8 :
(1) The signal is included only when you turn on the Priority-based flow control (PFC) parameter.
Table 9–8. Avalon-ST Status Interface Signals (Part 5 of 5)
Signal Direction Width Description