Mentor v8.6_4 manual ∙ timeplatestatement

TIMEPLATE Timing Command Dictionary

∙timeplate_statement;

A set of statements, each ending with a semi-colon (;), that comprise the body of the timeplate file. For each statement, the time value must be either 0 or a positive integer. Also, timeplate statements can include comments. Comment text (text on a line following “//”) does not affect timeplate statement execution in any way.

When you issue the Write Timeplate command, FastScan automatically generates the appropriate timeplate statements within the necessary timeplates for the pattern set. Timeplate statements include the following:

INIT_FORCE_PI time — Specifies the initial primary input force time for transition fault testing. When used, this statement must occur first in the timeplate.

Note that this timeplate statement is similar to the SET FIRST_FORCE TIME command that FlexTest uses in the timing file.

FORCE_PI time — Specifies the force time for all primary inputs. The time you specify must be greater than the INIT_FORCE_PI time if you use that statement.

Note that this timeplate statement is similar to the SET FORCE TIME command that FlexTest uses in the timing file.

BIDI_FORCE_PI time — Specifies the force time for all bidirectional pins. This statement lets you force the bidi pins after applying the tri-state control signal so the system avoids bus contention. The time you specify should be greater than the FORCE_PI time, and less than both the WRITE_RAM_CLOCK_ON and MEASURE_PO times.

Note that this timeplate statement is similar to the SET BIDI_FORCE TIME command that FlexTest uses in the timing file.

SKEW_FORCE_PI “ pin_name” ... time — Specifies the force time for specific pins. This statement lets you specify a force time for pins with special circumstances. For example, pins that clock only non-scan latches can cause setup and hold violations if they change at the same time as other inputs, so they may require a different force time. The time you specify should be less than both the WRITE_RAM_CLOCK_ON and MEASURE_PO times.

A-24 FastScan and FlexTest Reference Manual, V8.6_4