Designer supports Stamp model generation for the eX, Axcelerator, SX-A, and RTSX-S families. Stamp is an industry-standard file format that contains timing data. Stamp models are read by board timing verification tools, such as Mentor Graphics’s TAU and Viewlogic’s BLAST.
The Stamp model for a design consists of two files:
The *.mod file describes the Interface (IOs) and all timing arcs of the model.
The *.data file gives a timing value for each timing arc defined in the model.
Designer supports the following subset of Stamp modeling language for best, typical, and worst operating conditions:
Inputs to Outputs propagation delay arcs, for shortest and longest paths.
Inputs setup and hold timing-check arcs.
Clock period timing-check arcs.
To export a STAMP file:
In the File Menu, click the Timing export option from the Export sub-menu.
Select STAMP from the Save As Type list box.
Enter a file name in the File Name text box, followed by .mod, and click Save. (The corresponding *.data file is generated with the same name.)
In the Timing Preferences Dialog Box set your preferences and click OK. Timer exports the file to the area specified in the Export Timing Files dialog box. For information on setting preferences, please refer to the Timer User’s Guide.
Note:
Inputs to Outputs /Shortest/Longest delays cannot be generated in the same data file. You must output two separate Stamp files.
Longest Paths / Shortest Paths selection in the Preferences dialog box only affects Inputs to Outputs propagation delays and does not affect Period, Setup, and Hold timing-check delays.
Operating conditions will potentially affect all timing values of the Stamp data file. It is necessary to export 3 separate Stamp files if best/typical/worst models are needed.