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Glossary:Public Instructions

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A set of instructions defined in the 1149.1 Standard as being required or optional, but that are fully defined in their operation and the registers they access – the ten public instructions are: EXTEST, SAMPLE, PRELOAD, BYPASS (all mandatory), INTEST, RUNBIST, IDCODE, USERCODE, CLAMP, and HIGHZ (all optional).


Source: IEEE 1149.1.

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