STM8L151G4Y3 STMICROELECTRONICS [STMicroelectronics], STM8L151G4Y3 Datasheet - Page 56

• Manufacturer Part Number: STM8L151G4Y3
• Description: 8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Option bytes
7
Table 11.
56/122
00 480C
00 480A
00 480B
00 4800
00 4802
00 4807
00 4808
00 4809
Addr.
Boot code size)
clock cycles for
Brownout reset
Option name
HSE and LSE
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
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.
Option byte addresses
Independent
option bytes
stabilization
Bootloader
Number of
UBC (User
oscillators
protection
watchdog
Read-out
(OPTBL)
(ROP)
(BOR)
option
Table 11
OPTBL
Option
OPT0
OPT1
OPT3
OPT4
OPT5
[15:0]
byte
[3:0]
[3:0]
No.
for details on option byte addresses.
7
Doc ID 15962 Rev 5
Reserved
Reserved
Reserved
6
Reserved
5
4
OPTBL[15:0]
Option bits
ROP[7:0]
UBC[7:0]
WWDG
_HALT
LSECNT[1:0]
3
BOR_TH
WWDG
_HW
2
STM8L151xx, STM8L152xx
_HALT
IWDG
HSECNT[1:0]
1
IWDG
BOR_
_HW
ON
0
Factory
default
setting
0x00
0x00
0x00
0x00
0x00
0x01
0x00
0x00