INTEL 486-DX2边界扫描BSDL文件

--Copyright Intel Corporation 1993--Intel Corporation does not provide any warranty for the use of its products and assumes no responsibility for errors that may appear in this document.It does not commit to updating the information herein.

Boundary-Scan Description Language(BSDL Version 0.0)is a de-facto standard for defining the boundary scan capabilities of electronic devices.It provides a means for testing interconnections between integrated circuits on a printed circuit board using a boundary-scan technique.This language allows the description of the test access port(TAP)of the device and how the scan chains are connected,enabling efficient diagnostics.

The 486-DX2processor from Intel uses the BSDL file to facilitate boundary scan testing.It supports various testing modes such as serial test data shift,parallel input and output,and special control functions.The BSDL file is critical for ensuring proper functionality during manufacturing and verification phases,allowing engineers to conduct comprehensive tests on the device.

The BSDL file specifies the device's boundary scan architecture,including the number of boundary scan cells and the configuration of the test access port.It defines the TAP controller’s states,as well as the boundary scan register's input and output behavior,providing a clear and systematic way to test the device's interconnections.

This boundary scan process is essential for debugging and quality assurance during the production and maintenance of devices such as the 486-DX2processor,where physical probes and direct inspection are impractical.By leveraging the BSDL file,engineers can identify issues with the PCB assembly without the need for traditional pin-level testing,making the process faster and more reliable.