STM8AF6268ITAX datasheet(16/99 Pages) STMICROELECTRONICS

Nome de Peças	STM8AF6268ITAX

Descrição Electrónicos	Automotive 8-bit MCU, with up to 32 Kbyte Flash, data EEPROM, 10-bit ADC, timers, LIN, SPI, I2C, 3 to 5.5 V

PDF	99 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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16 / 99 page

Product overview

STM8AF6246/48/66/68

16/99

DocID14952 Rev 11

5.4.2

Write protection (WP)

Write protection in application mode is intended to avoid unintentional overwriting of the

memory. The write protection can be removed temporarily by executing a specific sequence

in the user software.

5.4.3

Protection of user boot code (UBC)

If the user chooses to update the Flash program memory using a specific boot code to

perform in application programming (IAP), this boot code needs to be protected against

unwanted modification.

In the STM8A a memory area of up to 32 Kbyte can be protected from overwriting at user

option level. Other than the standard write protection, the UBC protection can exclusively be

modified via the debug interface, the user software cannot modify the UBC protection

status.

The UBC memory area contains the reset and interrupt vectors and its size can be adjusted

in increments of 512 bytes by programming the UBC and NUBC option bytes

(see Section 9: Option bytes on page 44).

Figure 2. Flash memory organization of STM8AF6246/48/66/68

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