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Renesas rl78 User Manual

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RL78/G1A 
CHAPTER  25   FLASH  MEMORY 
The following methods for programming the flash memory are available. 
The code 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 25.4) 
Data can be written to the flash memory on-board or off-board by using a dedicated flash memory programmer. 
 
•  Serial programming using external device (UART communication) (see 25.2) 
Data can be written to the flash memory on-board through UART communication with an external device 
(microcontroller or ASIC). 
 
• Self-programming (see 25.6) 
The user application can execute self-programming of the code flash memory by using the flash self-programming 
library. 
 
The data flash memory can be rewritten to by using the data flash library during user program execution (background 
operation).  For access and writing to the data flash memory, see 25.8  Data Flash. 
 
R01UH0305EJ0200  Rev.2.00 
 
 
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Jul 04, 2013