The Vermilion BFM bridges the gap between the user’s testbench and an Interlaken Device Under Test (DUT).
Vermilion BFM Egress Interlaken Framing Layer Features:
• Gearbox provides 1 bit, 10 bit, 16 bit, 20 bit, or 67 bit interface to DUT
• 64B/67B decoding with Word Boundary Lock
• Framing bit error checking
• Inversion bit selection algorithm checking
• De-scramble words per Interlaken Spec with scrambler word state checking
• Metaframe payload words check for valid type
• Per lane CRC-32 checking in diagnostic words
• Per lane scrambler state checking in Scrambler words
• Per-lane excessive skew checking
• Metaframe checking of Diagnostic, Synchronization and Scrambler words
• Check for programmable number of skip words
• Test pattern alignment and checking per Interlaken specification for PRBS7, PRBS23, PRBS31
• Variable test pattern alignment and checking per Interlaken specification
Vermilion BFM Egress Interlaken Protocol Layer Features:
• Alignment performed for all lanes together
• CRC-24 checking of Idle and Burst control frames
• Data burst sequence checking and decapsulation
• Data burst channel, SOP, EOP, error, and size parameter extraction
• In-band or out-of-band flow-control transmission of user flow-control calendar status
• Out-of-band flow-control CRC-4 checking