JTAG

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File:JTAG.png

Joint Test Action Group (JTAG) is the common name for an industry standard access port. It is commonly used for IC level debugging. The interface is a special four/five pin interface added to a chip, to enable multiple chips to be chained together, needing only one data probe to test.

Hooking it up

  1. TDI (Test Data In)
  2. TDO (Test Data Out)
  3. TCK (Test Clock)
  4. TMS (Test Mode Select)
  5. TRST (Test Reset) optional.

References

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NOTE: All information contained within this article is pure opinion. Although this article is intended to help people, it may contain faulty or misleading information. This article is not to be considered professional opinion or advice, and is in no way a replacement for reading all safety/instructional documentation. Always remember to protect yourself when handling/using hazardous materials, as well as test new techniques before using them on projects/work intended to be handed in or used.

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