7 Series FPGAs GTP Transceivers User Guide www.xilinx.com 163UG482 (v1.9) December 19, 2016RX Byte and Word Alignmentboundary. In such applications, RXBYTEISALIGNED should not be used as a valid indicator of thechange in byte boundary after the first assertion.Alignment BoundariesThe allowed boundaries for alignment are defined by ALIGN_COMMA_WORD. The spacing ofthe possible boundaries is determined by RX_DATA_WIDTH, and the number of boundarypositions is determined by the number of bytes in the RXDATA interface (refer to Table 4-43,page 214 for RX_DATA_WIDTH settings). Figure 4-30 shows the boundaries that can be selected.X-Ref Target - Figure 4-30Figure 4-30: Comma Alignment BoundariesA LIG N_C O M M A_W O R D16/20(2-byte)P ossible R X A lignm ents(G rey = C om m a C an A ppear on B yte)16/20(2-byte)1232/40(4-byte)32/40(4-byte)12B yte0B yte1B yte0B yte1B yte0B yte1B yte2B yte3B yte0B yte1B yte2B yte3UG482_c4_19_112811R X_D A T A_W ID T HSend Feedback
