Delay constraint information can be described in a *.dcf file and imported into Designer. Because the DCF language was developed to interact directly with the Timer tool and is therefore not a recommended method.
Note: DCF files are only valid with earlier Antifuse families such as eX, SX-A, and SX. Although they are supported in eX and SX-A, Actel recommends that you use SDC files for all your constraints.
DCF files are platform dependent. If you transfer from PC to UNIX or vice-versa, you must manually translate carriage-returns (unix2dos, dos2unix, or via ftp). PC text files have an extra character for carriage returns compared to UNIX text files.
Supported command categories:
|
Categories |
Action |
|
Describes the clock waveforms from the global clock distribution network; local clocks, such as gated clocks, are not directly supported | |
|
Describes max/min delays | |
|
Defines the arrival time to an input port | |
|
Defines pins in don't care or false path | |
|
Defines the capacitance loading on package pins |