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https://opencores.org/ocsvn/srdydrdy_lib/srdydrdy_lib/trunk
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`define FIB_PORT 59:56 // associated port
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`define FIB_PORT 59:56 // associated port
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`define FIB_MAX_AGE 255 // maximum value of age timer
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`define FIB_MAX_AGE 255 // maximum value of age timer
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`define MULTICAST 48'h0100000000 // multicast bit
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`define MULTICAST 48'h0100000000 // multicast bit
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// Packet control codes
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`define PCC_SOP 2'b01 // Start of packet
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`define PCC_DATA 2'b00 // data word
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`define PCC_EOP 2'b10 // End of packet
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`define PCC_BADEOP 2'b11 // End of packet w/ error
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// Packet Ring Word
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`define PRW_SZ 70
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`define PRW_DATA 63:0 // 64 bits of packet data
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`define PRW_PCC 65:64 // packet control code
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`define PRW_VALID 68:66 // # of valid bytes modulo 8
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`define PRW_PVEC 69 // indicates this is port vector word
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