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MSP430 How to JTAG Slide 2

JTAG stands for “Joint Test Action Group” and was originally crafted as an entity that developed test methods for printed circuit boards. The guidelines and implementation was adopted as an IEEE industry standard in 1990 and has come to represent the interface by which an embedded design can be programmed, debugged and tested. Physically, JTAG is a four wire interface (five wire if considering the optional reset pin) consisting of data I/O, clock and mode signals. While the pinout is standard, there is no defined hardware interface standard. The physical connector used by suppliers of JTAG-enabled products are free to identify a pinning that suits their specific portfolio and tool chain requirements.

PTM Published on: 2011-12-05