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Chapter 6
Flash Memory
Preliminary User’s Manual U17566EE1V2UM00
6.1.1
Flash memory address assignment
The µPD70F3427, µPD70F3426, µPD70F3425 1 MB flash memory is made up
of 256 blocks.
Figure 6-1
shows the address assignment of the flash memory
blocks.
Figure 6-1
Address assignment of µPD70F3427, µPD70F3426, µPD70F3425 flash
memory blocks
The µPD70F3424, µPD70F3423 512 KB flash memory is made up of 128
blocks.
Figure 6-2
shows the address assignment of the flash memory blocks.
Figure 6-2
Address assignment of µPD70F3424, µPD70F3423 flash memory blocks
0010 0000
H
000F F000
H
000F E000
H
0000 2000
H
0000 1000
H
0000 0000
H
Block 0 (4 KB)
Block 1 (4 KB)
Block 254 (4 KB)
Block 255 (4 KB)
0008 0000
H
0007 F000
H
0007 E000
H
0000 2000
H
0000 1000
H
0000 0000
H
Block 0 (4 KB)
Block 1 (4 KB)
Block 126 (4 KB)
Block 127 (4 KB)
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