Procedure To Select The Device And Change The Bit Rate - Renesas RX100 Series User Manual

RX13T Group
31.11.3

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.
Serial
programmer
Wait for 1-bit period
at the old bit rate
Set the new bit rate
Figure 31.30 Procedure to Select the Device and Change the Bit Rate
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
10h (device select command)
46h (ACK)
90h, XXh (error code)
3Fh (operating frequency select command)
06h (ACK)
BFh, XXh (error code)
06h (communication confirmation data)
06h (ACK)
31. Flash Memory (FLASH)
MCU
(1)
(2)
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