Cyclone V Device Handbook: Volume 2: Transceivers

ID 683586
Date 10/24/2018
Document Table of Contents Byte Serializer in Single-Width Mode

The byte serializer forwards the LSByte first, followed by the MSByte. The input data width to the byte serializer depends on the channel width option. For example, in single-width mode with a channel width of 20 bits, the byte serializer sends out the least significant word tx_parallel_data[9:0] of the parallel data from the FPGA fabric, followed by tx_parallel_data[19:10].

Table 12.  Input and Output Data Width of the Byte Serializer in Single-Width Mode for Cyclone V Devices
Mode Input Data Width to the Byte Serializer Output Data Width from the Byte Serializer Byte Serializer Output Ordering
Single-width 16 8 Least significant 8 bits of the 16-bit output first
20 10 Least significant 10 bits of the 20-bit output first