Mentor v8.6_4 manual ∙ Constrainvalue, ∙ Seqdepthdata FastScan Only, ∙ Clockcone pinname

Set Gate Report Command Dictionary

∙Constrain_value

A literal that specifies for the Report Gates command to display the simulated values that result from all natural tied gates, learned constant value non-scan cells, constrained pins, and constrained cells.

The Report Gates command displays three values which are separated by a slash (/). These values are the gate constrained value (0, 1, X, or Z), the gate forbidden values (-, 0, 1, Z, or any combination of 01Z), and the fault blockage status (- or B, where B indicates all fault effects of this gate are blocked).

∙Seq_depth_data (FastScan Only)

A literal that specifies for the Report Gates command to display the calculated gate sequential depths.

When you select a non-zero sequential depth, the tool performs a learning process to identify the minimum depths necessary to satisfy controllability and observability requirements for all gates using the current clock_sequential cells. The tool calculates both the 0-state and 1-sate controllability depths. At the end of the analysis, the tool displays a summary message indicating the largest sequential test depth, along with the largest control and observe depth. The test generator uses the sequential depth information in making decisions and avoiding paths whose sequential depth exceeds the maximum allowed sequential depth.

The Report Gates command includes three values separated by a comma and a dash. The first value is the 0-state controllability depth, the second value is the 1-state controllability depth, and the third value is the observability depth. The maximum reported depth is 255. If controllability or observability is logically impossible or exceeds 255, the report displays an asterisk (*) in the corresponding fields.

∙Clock_cone pin_name

A literal and string pair that specifies the clock pin for which the Report Gates command displays the clock cone data.

The clock cone data from the Report Gates command is the same data that is available as error data for clock rules violations. You can only use this option after flattening the simulation model.

The pin_name must be a valid clock pin or an error condition occurs. The tool considers the pin equivalents when calculating the clock cones. State elements

2-494 FastScan and FlexTest Reference Manual, V8.6_4