Analog Devices Blackfin, Getting Started

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Getting Started With Blackfin Processors 2-45
The Evaluation Process
embeds test circuitry at chip level to form a complete board-level test pro-
tocol. With boundary-scan—industry standard IEEE 1149.1 since
1990—you can access the most complex assemblies for testing, debugging,
in-system device programming, and diagnosing hardware problems.
Blackfin processors are equipped with a JTAG port and thus support the
IEEE 1149.1 standard for system test.
Through the JTAG port, you can run and halt the processor remotely.
The internal and external processor memory can be read or written, and
breakpoints can be set.
Most development boards include some built-in JTAG emulation cir-
cuitry. Your own hardware, most likely, does not contain this circuitry.