User guide

13-17
SDF Backannotation
Delay Objects and Constructs
The mapping from SDF statements to simulation objects in VCS is
fixed, as shown in Table 13-1.
Table 13-1 VCS Simulation Delay Objects/Constructs
SDF Constructs VCS Simulation Object
Delays
PATHPULSE module path pulse delay
GLOBALPATHPULSE module path pulse reject/error delay
IOPATH module path delay
PORT module input port delay
INTERCONNECT module input port delay or,
intermodule path delay when
+multisource_int_delays
specified
NETDELAY module input port delay
DEVICE primitive and module path delay
Timing-checks
SETUP $setup timing-check limit
HOLD $hold timing-check limit
SETUPHOLD $setup and $hold timing-check
limit
RECOVERY $recovery timing-check limit
SKEW $skew timing-check limit
WIDTH $width timing-check limit
PERIOD $period timing-check limit
NOCHANGE ignored
PATHCONSTRAINT ignored
SUM ignored
DIFF ignored