R01UH0823EJ0100 Rev.1.00 Page 1715 of 1823
Jul 31, 2019
RX23W Group 50. Flash Memory (FLASH)
50.10.5.2 Data Area Availability Inquiry
When the MCU receives this command, it sends the result indicating that the data area is available, area protection can be
used, and the data area program command is available.
Size (1 byte): Number of characters of Availability (the value is always 01h)
Availability (1 byte): Availability of the data area (the value is always 1Dh)
1Dh represents the data area is available, area protection can be used, and data area program command is
available.
SUM (1 byte): Value that is calculated so the sum of response data is 00h (the value is always A8h)
50.10.5.3 User Area Information Inquiry
When the MCU receives this command, it sends the number of user areas and addresses.
Size (1 byte): Total bytes of Number of areas, Area start address, and Area end address (the value is always 09h)
Number of areas (1 byte): Number of user areas (the value is always 01h)
Area start address (4 bytes): Start address of the user area
Area end address (4 bytes): End address of the user area
SUM (1 byte): Value that is calculated so the sum of the response data is 00h
Command 2Ah
Response 3Ah Size Availability SUM
Command 25h
Response 35h Size
Number of
areas
Area start address
Area end address
SUM
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