RX610 Group
27. Data Flash (Flash Memory for Data Storage)
R01UH0032EJ0120 Rev.1.20
Page 921 of 1006
Feb 20, 2013
27.3
Configuration of Memory Mat for the Data Flash Memory
The data flash memory of products in the RX610 Group is configured as a 32-Kbyte data mat. The address range
occupied by this mat is shown in figure 27.2.
Note that for the data mat, the address range for reading is the same as the address range for programming and erasure.
Address 0010 0000h
Address 0010 7FFFh
Data mat
(32 Kbytes)
Figure 27.2 Configuration of the Data Mat
27.4
Block Configuration
The configuration of erasure blocks for the data mat is shown in figure 27.3. As units of erasure, the data mat is divided
into 4 blocks of 8 Kbytes. Programming is in 8- or 128-byte units. Programming in eight-byte units proceeds for the eight
bytes from an address for which the three lower-order bits are zero. Programming in 128-byte units proceeds for the 128
bytes from an address for which the lower-order byte is 00h or 80h.
Address 0010 0000h
Address 0010 7FFFh
8 Kbytes
×
4 blocks
Data mat
Blocks
DB0
to
DB3
Figure 27.3 Division of the Data Mat into Erasure Blocks
Summary of Contents for RX600 Series
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