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