ST8500 datasheet(20/37 Pages) STMICROELECTRONICS

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ST8500 Scheda tecnica(PDF) 20 Page - STMicroelectronics

Il numero della parte	ST8500

Spiegazioni elettronici	Programmable power line communication modem System on Chip

PDF	37 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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20 / 37 page

Device architecture

ST8500

20/37

DocID031029 Rev 3

“Reserved1” modes is selected the bootloader automatically jumps to the RAM code

starting address. In this case, the user can access to the device through the JTAG if not

locked.

The system JTAG is not accessible during the execution of the bootloader procedure. At the

end of the bootloader, it becomes accessible. It is also possible by means of an appropriate

user security bit in the OTP memory (see Section 2.4.4 on page 14), to keep the JTAG port

locked even after the boot procedure, to avoid unwanted accesses to the core and

memories.

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