参数资料
型号: IP-POSPHY4
厂商: Altera
文件页数: 63/144页
文件大小: 0K
描述: IP POS-PHY L4
标准包装: 1
系列: *
类型: MegaCore
功能: POS-PHY 4 级接口,链路层/物理层
许可证: 初始许可证
Chapter 4: Functional Description—Receiver
4–23
Error Flagging and Handling
Missing EOP
Figure 4–11 and 4–23 show that if a SOP is detected during an open packet, the
err_ry_meop signal is asserted, an EOP is forced, the err signal is asserted, and data is
ignored for that port until an EOP is received.
Figure 4–11. Missing EOP Input Timing Diagram
Figure 4–13. Overflow
aN_rxclk
aN_arxena
Packet A
aN_atxtclk
aN_atxena
aN_atxsop
aN_atxeop
aN_atxerr
Figure 4–12. Missing EOP Output Timing Diagram
aN_arxtclk
aN_arxena
aN_arxsop
aN_arxeop
aN_arxerr
err_ry_meop
SS
SS
Packet B
aN_arxsop
SS
aN_arxeop
SS
err_ry_fifo_oflwN
aN_arxda v
SS
Good Packet
Interrupted Packet(s)
Good Packet
May 2013
Altera Corporation
POS-PHY Level 4 MegaCore Function User Guide
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