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BF547 Boundary Scan

Question asked by spflanze on Mar 7, 2012
Latest reply on Mar 8, 2012 by CraigG

I am using the schematics at:

http://www.analog.com/en/processors-dsp/blackfin/adsp-bf548/processors/product.html

as a reference to design a system based on the ADSP-BF547. I would like to have the debug capability of Boundary Scan. Section C3 on page 124 of the above pdf shows most of the pins on the left side of the JTAG connector ZP4 to be grounded. EE-68 shows these same pins are used for boundary scan. So it appears that evaluation board does not have boundary scan.

 

EE-68 references a "boundary scan controller" that these left side pins on the JTAG header would connect to. Is the boundary scan controller an internal part of the Blackfin processor or is it additional circuitry external to the Blackfin?

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