NDGANNO returns the following message for XC3100 non-A designs.
WARNING:basnd:168 - Cannot find referenced model "bel_tcki".
This generally indicates that there is an inconsistency between
versions of the speed and device data files. Please check to ensure
that the XILINX environment variable is set correctly, if the MYXILINX
variable is set, make sure that it is pointing to patch files that are
compatable with the version of software that the XILINX variable
FATAL_ERROR:basna:basnasite.c:131:1.3 - cannot find BEL
delay TCKI in CLB speed table Process will terminate.
Please call Xilinx support.
The F1.4/A1.4 Design Manager Part Selector errantly allows
XC3100 parts to be selected.
The F1.4/A1.4 tools support XC3000A/L and XC3100A/L parts but
does NOT support XC3100 and XC3000 parts.
The XC3100 and XC3000 devices have been formally obsoleted.
All new designs should target XC3x00A/L or newer family devices.
The specific cause of the ngdanno fatal error above is the absence
of certain crucial data from the speed file (BEL delay records).