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STM8S датащи(PDF) 54 Page - STMicroelectronics

номер детали STM8S
подробное описание детали  STM8S Series and STM8AF Series 8-bit microcontrollers
PDF  467 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8S датащи(HTML) 54 Page - STMicroelectronics

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Flash program memory and data EEPROM
RM0016
54/467
DocID14587 Rev 14
4.8.4
Flash protection register (FLASH_FPR)
Address offset: 0x03
Reset value: 0x00
4.8.5
Flash protection register (FLASH_NFPR)
Address offset: 0x04
Reset value: 0xFF
4.8.6
Flash program memory unprotecting key register (FLASH_PUKR)
Address offset: 0x08
Reset value: 0x00
76
54
32
10
Reserved
WPB5
WPB4
WPB3
WPB2
WPB1
WPB0
r
ro
rorororo
ro
Bits 7:6 Reserved.
Bits 5:0 WPB[5:0]: User boot code area protection bits
These bits show the size of the boot code area. They are loaded at startup with the content of
the UBC option byte. Refer to the datasheets for the protected pages according to the bit
values.
76
54
32
10
Reserved
NWPB5
NWPB4
NWPB3
NWPB2
NWPB1
NWPB0
ro
ro
ro
ro
ro
ro
Bits 7:6 Reserved.
Bits 5:0 WPB[5:0]: User boot code area protection bits
These bits show the size of the boot code area. They reflect the content of the NUBC option
byte. Refer o the datasheet for the protected pages according to the bit values.
7
654
3210
MASS_PRG KEYS
rw
Bits 7:0 PUK [7:0]: Main program memory unlock keys
This byte is written by software (all modes). It returns 0x00 when read.
Refer to Enabling write access to the main program memory on page 44 for the description
of main program area write unprotection mechanism.



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