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STM8S003F3 bảng dữ liệu(PDF) 14 Page - STMicroelectronics

tên linh kiện STM8S003F3
Giải thích chi tiết về linh kiện  Extended instruction set
PDF  104 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM8S003F3 bảng dữ liệu(HTML) 14 Page - STMicroelectronics

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STM8S003F3 STM8S003K3
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DocID018576 Rev 9
The size of the UBC is programmable through the UBC option byte (Table 13), in increments
of 1 page (64-byte block) by programming the UBC option byte in ICP mode.
This divides the program memory into two areas:
•
Main program memory: 8 Kbyte minus UBC
•
User-specific boot code (UBC): Configurable up to 8 Kbyte
The UBC area remains write-protected during in-application programming. This means that
the MASS keys do not unlock the UBC area. It protects the memory used to store the boot
program, specific code libraries, reset and interrupt vectors, the reset routine and usually
the IAP and communication routines.
Figure 2. Flash memory organization
Read-out protection (ROP)
The read-out protection blocks reading and writing from/to the Flash program memory and
data EEPROM memory in ICP mode (and debug mode). Once the read-out protection is
activated, any attempt to toggle its status triggers a global erase of the program memory.
Even if no protection can be considered as totally unbreakable, the feature provides a very
high level of protection for a general purpose microcontroller.



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