net_critical_ports
Defines a subset of critical ports on a net. The resulting
netlist contains a buffer in the origin net, together with the critical
ports. The inserted buffer drives the remaining connections on the original
net.
net_critical__ports hier_net_name instance_port_name [ , instance_port_name
];
Arguments
hier_net_name
Specifies the name of the hierarchical net(s).
instance_port_name
Specifies the name of the ports on the net(s).
Supported Families
ProASIC
PLUS
and ProASIC
Exceptions
Examples
The following example identifies two inputs of the
net /u1/u2/net1 that are more critical than all other connections on that
net. All other connections on the net will be buffered with a BUF cell
that will be placed in a tile to reduce fanout delay on the specified
inputs:
net_critical_ports /u1/u2/net1 nandbk1.A sigproc.C;
See Also
Constraint
support by family
Constraint
entry table
GCF syntax conventions