-p<pcf_file>
Specify PCF file to use (needed for correct IO pin names).
-P<chip_package>
Specify chip package (needed for correct IO pin names).
-g<net_index>
Write a graphviz description of the interconnect tree that includes the given net to
'icetime_graph.dot'.
-o<output_file>
Write verilog netlist to the named file. Use '-' for stdout.
-r<output_file>
Write timing report to the named file (instead of stdout).
-dlp1k|hx1k|lp8k|hx8k
Select the device type (default = lp variant).
-m Enable max_span_hack for conservative timing estimates.
-i Only consider interior timing paths (not to/from IOs).
-t Print a timing estimate (based on topological timing analysis).
-T<net_name>
Print a timing estimate for the specified net.
-v Verbose mode (print all interconnect trees).