Product Documentation
Spectre FX Circuit Simulator User Guide
Product Version 23.1, September 2023

Support for Digital Vector File

A digital vector file (VEC) defines how to perform vector checks and apply stimuli according to the digital vectors. To process the digital vector file formats, specify the following statement in the netlist file:

Spectre Syntax

vec_include "vector_filename" [HLCheck=0|1] [autostop=yes|no] [insensitive=yes|no]

SPICE Syntax

.vec "vector_filename" [HLCheck=0|1] [autostop=true|false] [insensitive=yes|no]

Arguments

Name Description

vector_filename

The filename of the digital vector file.

HLCheck = 0 | 1

Special flag that enables the checking for the H and L states for input signals. The default value is 0.

autostop=yes|no

If the value is set to no, Spectre FX uses the end time from the .tran or tran statement. This is the default value.

If the value is set to yes, Spectre FX uses the last specified time point in the vector file as the end time. If multiple .vec files are specified, and autostop=yes is specified in one or all .vec statements, the simulator takes the largest time point available in the .vec files and uses it as the end time.

The autostop argument can also be used when loading the .vcd and .evcd files.

insensitive=yes|no

Specifies whether the vector file content is considered case sensitive or insensitive. The default value is yes. For example, if you are in Spectre mode and a vector file is case sensitive, use insensitive=no.

Related Topics

Digital Vector File Format


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