The Maximum Congestion reports list all windows with the same maximum congestion level in a specific routing direction. The following columns appear in the report:
- Direction
- The direction of the congested routing resources (North, South, West, or East).
- Congestion Level
- The maximum congestion level in CLB tiles.
- Congestion
- The estimated routing resource utilization in the defined window. This value can exceed 100%.
- Congestion Window
- The bounding CLB tiles where the congestion for the identified direction is present. The coordinates correspond to the lower-left and upper-right corners of the window. This column is available only in the text report. In the GUI report, selecting the congestion window highlights the congested area in the Device window.
- Cell Names
- The parent instance containing the hierarchical cells in the congestion window, listing up to the three largest contributors with their contribution percentage. In the GUI report, these names are hyperlinked to highlight the respective leaf cells in the congestion window.
- Avg LUT Input
- The average number of inputs for the LUTs in the window.
- COMBINED LUTs %
- The percentage of LUTs combined in the window.
- LUT usage %
- The percentage of LUT utilization in the window.
- LUTRAM usage %
- The percentage of LUTRAM utilization in the window.
- Flop usage %
- The percentage of FD (including LD) utilization in the window.
- MUX usage %
- The percentage of MUXF utilization in the window.
- RAMB usage %
- The percentage of RAMB utilization in the window.
- URAM usage %
- The percentage of UltraRAM utilization in the window.
- DSP usage %
- The percentage of DSP utilization in the window.
- CARRY usage %
- The percentage of CARRY utilization in the window.
- SRL usage %
- The percentage of SRL utilization in the window.