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STM8L15 Fiches technique(PDF) 56 Page - STMicroelectronics

No de pièce STM8L15
Description  8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
PDF  122 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8L15 Fiches technique(HTML) 56 Page - STMicroelectronics

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Option bytes
STM8L151xx, STM8L152xx
56/122
Doc ID 15962 Rev 5
7
Option bytes
Option bytes contain configurations for device hardware features as well as the memory
protection of the device. They are stored in a dedicated memory block.
All option bytes can be modified in ICP mode (with SWIM) by accessing the EEPROM
address. See Table 11 for details on option byte addresses.
The option bytes can also be modified ‘on the fly’ by the application in IAP mode, except for
the ROP and UBC values which can only be taken into account when they are modified in
ICP mode (with the SWIM).
Refer to the STM8L15x Flash programming manual (PM0051) and STM8 SWIM and Debug
Manual (UM0320) for information on SWIM programming procedures.
Table 11.
Option byte addresses
Addr.
Option name
Option
byte
No.
Option bits
Factory
default
setting
76
54
3
2
1
0
00 4800
Read-out
protection
(ROP)
OPT0
ROP[7:0]
0x00
00 4802
UBC (User
Boot code size)
OPT1
UBC[7:0]
0x00
00 4807
Reserved
0x00
00 4808
Independent
watchdog
option
OPT3
[3:0]
Reserved
WWDG
_HALT
WWDG
_HW
IWDG
_HALT
IWDG
_HW
0x00
00 4809
Number of
stabilization
clock cycles for
HSE and LSE
oscillators
OPT4
Reserved
LSECNT[1:0]
HSECNT[1:0]
0x00
00 480A
Brownout reset
(BOR)
OPT5
[3:0]
Reserved
BOR_TH
BOR_
ON
0x01
00 480B
Bootloader
option bytes
(OPTBL)
OPTBL
[15:0]
OPTBL[15:0]
0x00
00 480C
0x00



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