SH7055S Datasheet, PDF (779/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

22.2.4 Flash Memory Configuration
This LSI's flash memory is configured by the 512-kbyte user MAT and 8-kbyte user boot MAT.
The start address is allocated to the same address in the user MAT and user boot MAT. Therefore,
when the program execution or data access is performed between the two MATs, the MAT must
be switched by using FMATS. The user MAT is divided into two 512-kbyte banks (bank 0 and
bank 1).
The user MAT or user boot MAT can be read in all modes if it is in ROM valid mode. However,
the user boot MAT can be programmed only in boot mode and programmer mode.
Address
H'00,0000
<User MAT>
Address
H'00,0000
Address
H'00,1FFF
<User boot MAT>
8 kbytes
Address
H'07,FFFF
Figure 22.3 Flash Memory Configuration
The user MAT and user boot MAT have different memory sizes. Do not access a user boot MAT
that is 8 kbytes or more. When a user boot MAT exceeding 8 kbytes is read from, an undefined
value is read.
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