JTAG/IEEE 1149.1 DESIGN CONSIDERATIONS

Using surface-mount packages, double-sided boards, and multi-chip modules in board design results in the loss of physical access to the signals on these boards. JTAG or boundary scan provides a means of testing printed circuit boards and modules that might otherwise be untestable. This documents is a brief introduction to TI JTAG and its documentation. The basics of boundary scan are discussed.

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