MB90370 Series
104
(2) Sector configuration of 512K bit flash memory
The 512K bit flash memory has the sector configuration illustrated below. The addresses in the illustration are
the upper and lower addresses of each sector.
When accessed from the CPU, SA0 and SA1 to SA3 are allocated in the FF bank registers, respectively.
* : Writer addresses correspond to CPU addresses when data is programmed in flash memory by a parallel writer.
Writer addresses are used to program/erase data using a general-purpose writer.
SA3 (16 Kbytes)
SA2 (8 Kbytes)
SA1 (8 Kbytes)
SA0 (32 Kbytes)
Flash memory
CPU address
*Writer address
FFFFFFH
7FFFFH
FFC000H
FFBFFFH
FFA000H
FF9FFFH
FF8000H
FF7FFFH
FF0000H
7C000H
7BFFFH
7A000H
79FFFH
78000H
77FFFH
70000H
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