ScanWorks^® JTAG Hardware

The ScanWorks® boundary scan (JTAG) test and programming system is fully supported by a wide variety of hardware accessories with which engineers can connect ScanWorks to the unit under test (UUT). (Boundary scan is sometimes referred to as JTAG for the Joint Test Action Group, the body which first defined the standard. The two terms, boundary scan and JTAG, are used interchangeably.) These hardware accessories can be used to implement practically any conceivable configuration of JTAG test and in-system programming.

For ScanWorks, the test platform is either a standard PC or a system with a built-in (embedded) JTAG controller. A standard PC can function as a stand-alone bench-top ScanWorks boundary scan test development station, a JTAG repair station, or a manufacturing test station. Or, ScanWorks can be configured as part of an Agilent Medalist 3070 or i5000 in-circuit tester, a Checksum manufacturing defect analysis (MDA) system or a functional test bed in a PXI chassis.

In all cases, physical hardware connects the ScanWorks JTAG software to the unit under test (UUT), which may be either a board or a system. There are five categories of ScanWorks boundary scan hardware. They are the following:

• JTAG controllers
• JTAG interface pods
• JTAG buffer boards
• JTAG IO modules
• JTAG Accessories