Nibble utilization for 72-bit, Multi-Rank L/RDIMM with ECC in the non-flipped
configuration is shown in the following figure. DQ indicates a data nibble, AC
indicates an Address/Command/Control nibble, sys_clk indicates a nibble comprising
the System Clock pair, RESET_n, and ALERT_n.
Important: The nibble utilization figure is based on the fixed pinout output by Vivado for this configuration.
Figure 1. Nibble Utilization for 72-bit Multi-rank L/RDIMM with ECC
(Non-flipped)