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STLUX 数据表(PDF) 60 Page - STMicroelectronics |
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STLUX 数据表(HTML) 60 Page - STMicroelectronics |
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60 / 126 page ![]() Option bytes STLUX 60/126 DocID027870 Rev 1 10 Option bytes The user option byte is a memory E²PROM area allowing users to customize the IC device major functionalities: ROP: readout protection control field UBC: user boot code protection PWM: configurable reset output value WDG: internal watchdog HW configuration AFR: alternate multifunction signals configuration CKC: clock controller functionalities (PLL, HSE enable, AWU clock selection, etc.) HSE: clock stabilization counter WAIT: Flash and E²PROM wait state access time has to be configured with value 0x00 BOOT: configurable internal boot sources BL: bootloader control sequences Except the ROP byte all the other option bytes are stored twice in a regular (OPT) and complemented format (NOPT) for redundancy. The option byte can be programmed in ICP mode through the SWIM interface or in IAP mode by the application with the exception of the ROP byte that can be only configured via the SWIM interface. For further information about Flash programming refer to the programming manual “How to program STM8S and STM8A Flash program memory and data EEPROM” (PM0051). For information on SWIM programming procedures refer to the “STM8 SWIM communication protocol and debug module” user manual (UM0470). |
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