Chapter 4

Test Pattern File Formats

This chapter describes the test pattern file formats for FastScan and FlexText. Each tool uses a slightly different format so this chapter is divided into the following two major sections:

“FastScan Test Pattern File Format” on page 4-1

“FlexTest Test Pattern File Format” on page 4-12

FastScan Test Pattern File Format

The ASCII file describing the scan test patterns is divided into five sections, which are named header_data, setup_data, functional_chain_test, scan _test, and scan_cell. Each section (except the header_data section) begins with a section_name statement and ends with an end statement. Also in this file, any line starting with a double slash (//) is a comment line. The format of the data contained in each section is described as follows.

Header_Data

The header_data section contains the general information, or comments, associated with the test patterns. This is an optional section that requires a double slash (//) at the beginning of each line in this section. The data printed may be in the following format:

//model_build_version - the version of the model build program that was used to create the scan model.

//design_name - the design name of the circuit to be tested.

FastScan and FlexTest Reference Manual, V8.6_4

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Mentor v8.6_4 manual Chapter Test Pattern File Formats, HeaderData