Guidelines for Parasitic Backannotation Options

For the selective backannotation options, consider the following guidelines to define net in the RC section:

Wildcards are supported.
For multiple net names in the option definition, specify them within [].
If you specify the selective backannotation options multiple times, all specified settings are considered and combined.
The above is also applicable to a few other backannotation options, such as sfx_ba_dspf_net and sfx_ba_dspf_instance options, but not all. For example, in case of the sfx_ba_instance_scale option, only the last specified value is considered.
The hierarchical delimiter is from the DSPF file (because net exists in the DSPF file). The mapping of net in the options is matched with the DSPF file RC NET and not directly with the pre-layout nodes.
If you are specifying net in files for options sfx_ba_skip_net_file, sfx_ba_gcap_net_file, and so on, ensure that each net is specified in a separate line. Multiple net entries in one line are not supported.

If a net is specified using by multiple selective backannotation statements, the precedence is defined by the following two rules:

Rule 1: The net name without a wildcard overwrites the names matched by wildcards in all the other statements. For signals with wildcard, their priority is the same.
Rule 2: The precedence of options is: sfx_ba_skip_net > sfx_ba_rc_net > sfx_ba_ccap_net > sfx_ba_gcap_net.