Article ID: 000086610 Content Type: Troubleshooting Last Reviewed: 10/03/2018

What instruction register (IR) lengths are supported in JTAG chain by the Intel®  Quartus®  Prime Programmer?

Environment

    Intel® Quartus® Prime Pro Edition
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Description

When you define the instrustion register (IR) length of an unknow device in JTAG chain using New Device feature of Add Device feature of the Intel® Quartus® Prime Programmer, you can choose one of the following numbers.

 

2 to 31, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 250, 255

 

Even if you import a boundary scan description language (*.bsd, *.bsm, *.bsdl) file with IR length larger than 255, the Programmer tool can't support it.

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