Datasheet

Option bytes STM8L15xx8, STM8L15xR6
64/134 DocID17943 Rev 6
OPT5
BOR_ON:
0: Brownout reset off
1: Brownout reset on
BOR_TH[3:1]: Brownout reset thresholds. Refer to Table 20 for details on the thresholds
according to the value of BOR_TH bits.
OPTBL
OPTBL[15:0]:
This option is checked by the boot ROM code after reset. Depending on the content of
addresses 00 480B, 00 480C and 0x8000 (reset vector) the CPU jumps to the
bootloader or to the reset vector.
Refer to the UM0560 bootloader user manual for more details.
Table 13. Option byte description (continued)
Option
byte no.
Option description