Users Manual

Table Of Contents
R01UH0823EJ0110 Rev.1.10 Page 1678 of 1852
Nov 30, 2020
RX23W Group 50. Flash Memory (FLASH)
50.2 ROM Area and Block Configuration
The maximum ROM size of this MCU is 512 Kbytes. The ROM area is divided into blocks. A block is 2-Kbyte area.
When executing the block erase command, the memory is erased by the block.
Figure 50.1 shows the ROM Area and
Block Configuration.
Figure 50.1 ROM Area and Block Configuration
Table 50.2 Correspondence Between ROM Capacity and Addresses for Reading
ROM Capacity Addresses for Reading
512 Kbytes FFF8 0000h to FFFF FFFFh
384 Kbytes FFFA 0000h to FFFF FFFFh
FC1A 0000h
FC18 0000h
384
Kbytes
512
Kbytes
FC1C 0000h
User area (block number)
1 block = 2 Kbytes
Address for programming/erasureAddress for reading
FFF8 0000h
FFFA 0000h
FFFC 0000h
FFFF FFFFh
(255)
(192)
(191)
(128)
(127)
(000)
FC1F FFFFh