31.14 Usage Notes In Boot Mode - Renesas RX100 Series User Manual

RX13T Group

31.14 Usage Notes in Boot Mode

(1) Notes on Communication Errors in Boot Mode
When communication with the MCU cannot be performed properly, reset and start up in boot mode again.
(2) Notes on Power Supply Voltage in Boot Mode (SCI Interface)
When the bit rate exceeds 500 kbps in boot mode (SCI Interface), use a voltage that is 3.0 V or higher.
(3) Notes on Option-Setting Memory in Boot Mode
The settings of option function select register 0 (OFS0), option function select register 1 (OFS1), and endian select
register (MDE) are disabled in boot mode.
(4) Notes on Switching the Start-Up Area
Switch the start-up area by self-programming.
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
31. Flash Memory (FLASH)
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