Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 1733 of 1823
Jul 31, 2019
RX23W Group 50. Flash Memory (FLASH)
50.11.3 Procedure to Select the Device and Change the Bit Rate
Procedure to select the device to connect with the serial programmer and to change the bit rate for communication is as
follows.
(1) Send the device select command (10h). Select the device code according to the endian of developed software.
(2) Send the operating frequency select command (3Fh) to change the communication bit rate from 9,600 or 19,200
bps.
Figure 50.35 Procedure to Select the Device and Change the Bit Rate
10h (device select command)
MCU
46h (ACK)
90h, XXh (error code)
3Fh (operating frequency select command)
06h (ACK)
BFh, XXh (error code)
Wait for 1-bit period
at the old bit rate
Set the new bit rate
06h (communication confirmation data)
06h (ACK)
(1)
(2)
Serial
programmer

Renesas RX Series Specifications

General

Brand	Renesas
Model	RX Series
Category	Microcontrollers
Language	English