User guide

13-18
SDF Backannotation
SDF Configuration File Commands
This section explains the commands used in SDF configuration files,
with syntax and examples.
approx_command:
The INTERCONNECT_MPID keyword selects the INTERCONNECT
delays in the SDF file that are mapped to MIPDs in VCS. It can specify
one of the following to VCS:
MINIMUM
Annotates, to the MIPD for the input or inout port instance, the
shortest delay of all the INTERCONNECT delay value entries in
the SDF file that specify a connection to the input or inout port.
MAXIMUM
Annotates, to the MIPD for the input or inout port instance, the
longest delay of all the INTERCONNECT delay value entries in
the SDF file that specify a connection to the input or inout port.
AVERAGE
Annotates, to the MIPD for the input or inout port instance, the
average delay of all the INTERCONNECT delay value entries in
the SDF file that specify a connection to the input or inout port.
LAST
Annotates, to the MIPD for the input or inout port instance, the
delays in the last INTERCONNECT entry in the SDF file that
specifies a connection to the input or inout port.
The default approximation is MAXIMUM.
SKEWCONSTRAINT ignored
Table 13-1 VCS Simulation Delay Objects/Constructs
SDF Constructs VCS Simulation Object