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ST72324BJ2 数据表(PDF) 19 Page - STMicroelectronics |
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ST72324BJ2 数据表(HTML) 19 Page - STMicroelectronics |
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19 / 188 page  ST72324B Flash program memory 19/188 4.3.1 Readout protection Readout protection, when selected, provides a protection against program memory content extraction and against write access to Flash 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. In Flash devices, this protection is removed by reprogramming the option. In this case, the entire program memory is first automatically erased. Readout protection selection depends on the device type: ● In Flash devices it is enabled and removed through the FMP_R bit in the option byte. ● In ROM devices it is enabled by mask option specified in the option list. Figure 7. Memory map and sector address 4Kbytes 4Kbytes Sector 1 Sector 0 Sector 2 8K 16K 32K Flash FFFFh EFFFh DFFFh 7FFFh 24 Kbytes memory size 8Kbytes BFFFh |
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