jtag logic
The JTAG programming interface works much the same way as the two other programming interfaces. The same functionality and restrictions apply. The main thing to remember if you want to use the JTAG for programming is to set the Lock bits correctly. Setting the JTAGEN will not do you any good if you have
disabled Further write or Read/write by programming the Lock Bits!
This table explains the relationship between JTAG Programming interface and the Lock Bits:
NOTE: In the following table we use “P” for programmed, and “U” for un- programmed fuse.
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