MCU STM8S003F3 Memory Heximal Code Extraction is a process starts from crack stm8s003 microcontroller fuse bit by laser cutting and then copy program of flash and data of eeprom from stm8s003f3 memory;

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 when reading out stm32f100c8 flash memory file.

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 when try to extract IC code from Microcontroller, the feature provides a very high level of protection for a general purpose microcontroller.