188.8.131.52. JTAG Secure Mode
You can enable the JTAG secure when generating the .pof in the Convert Programming Files. To exit JTAG secure mode, issue the UNLOCK JTAG instruction. The LOCK JTAG instruction puts the device in the JTAG secure mode again. The LOCK and UNLOCK JTAG instructions can only be issued through the JTAG core access. Refer to JTAG Instruction Availability for list of available instructions.