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Renesas RA Family: System Specifications for Standard Boot Firmware

This application note details the specifications for the standard boot firmware used with Renesas RA microcontrollers. It is designed for users who have a foundational understanding of Renesas RA products, FPSYS, FACI, and FCB.

Key Information

The document provides an in-depth look at the boot firmware's system architecture and serial programming interfaces, supporting both Two-wire UART and USB communication modes. It covers essential operating procedures, state transitions, and the necessary packet formats for effective flash programming.

Key commands discussed include Inquiry, Erase, Write, Read, ID Authentication, Baud Rate Setting, Signature Request, and Area Information Request.

This specification applies to the following Renesas MCU groups:

RA2A1
RA4M1
RA6M1
RA6M2
RA6M3

For more details, resources, and support, please visit the official Renesas website:

Google Docs
Google Drive
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