RL78/G15 CHAPTER 19 FLASH MEMORY
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Mar 7, 2023
The following methods for programming the flash memory are available.
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The code flash memory and data flash memory can be rewritten to through serial programming using a flash
memory programmer or an external device (UART communication), or through self-programming.
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Serial programming using flash memory programmer (see 19.1 Serial Programming Using Flash Memory
Programmer)
Data can be written to the flash memory on-board or off-board by using a dedicated flash memory programmer.
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Serial programming using external device (UART communication) (see 19.2 Writing to Flash Memory by Using
External Device (that Incorporates UART))
Data can be written to the flash memory on-board through UART communication with an external device
(microcontroller or ASIC).
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Self-programming (see 19.6 Self-Programming)
The user application can execute self-programming of the code flash memory or data flash memory by using the
flash self-programming code.
Caution The data flash memory can be rewritten by using the flash self-programming code, but cannot be
rewritten in background operation during user program execution.