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17.3
Memory MAT Configuration
The memory MATs of flash memory in this LSI consists of the 256-kbyte user MAT and 10-kbyte
user boot MAT. The start addresses of the user MAT and user boot MAT are allocated to the same
address. Therefore, when the program execution or data access is performed between the two
memory MATs, the memory MATs must be switched by the flash MAT select register (FMATS).
The user MAT or user boot MAT can be read in all modes. However, the user boot MAT can be
programmed or erased only in boot mode and programmer mode.
The size of the user MAT is different from that of the user boot MAT. Addresses which exceed
the size of the 10-kbyte user boot MAT should not be accessed. If an attempt is made, data is read
as an undefined value.
H'000000
H'03FFFF
User MAT
256 kbytes
Figure 17.3 Memory MAT Configuration
Section 17 Flash Memory (0.18-(m F-ZTAT Version)
User boot MAT
H'000000
H'0027FF
Rev. 3.00 Mar. 14, 2006 Page 573 of 804
10 kbytes
REJ09B0104-0300
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