Datasheet

Section 7 ROM
Rev. 2.00 Sep. 23, 2005 Page 80 of 444
REJ09B0068-0200
7.1 Block Configuration
Figure 7.1 shows the block configuration of flash memory. The thick lines indicate erasing units,
the narrow lines indicate programming units, and the values are addresses. The flash memory is
divided into 1 kbyte × 4 blocks, and 28 kbytes × 1 block. Programming is performed in 128-byte
units starting from an address with lower eight bits H'00 or H'80.
H'007F
H'0000 H'0001 H'0002
H'00FF
H'0080 H'0081 H'0082
H'03FF
H'0380 H'0381 H'0382
H'047F
H'0400 H'0401 H'0402
H'04FF
H'0480 H'0481 H'0482
H'07FF
H'0780 H'0781 H'0782
H'087F
H'0800 H'0801 H'0802
H'08FF
H'0880 H'0881 H'0882
H'0BFF
H'0B80 H'0B81 H'0B82
H'0C7F
H'0C00 H'0C01 H'0C02
H'0CFF
H'0C80 H'0C81 H'0C82
H'0FFF
H'0F80 H'0F81 H'0F82
H'107F
H'1000 H'1001 H'1002
H'10FF
H'1080 H'1081 H'1082
H'7FFF
H'7F80 H'7F81
H'7F82
Programming unit: 128 bytes
Programming unit: 128 bytes
Programming unit: 128 bytes
Programming unit: 128 bytes
Programming unit: 128 bytes
1 kbyte
Erase unit
1 kbyte
Erase unit
1 kbyte
Erase unit
1 kbyte
Erase unit
28 kbytes
Erase unit
Figure 7.1 Flash Memory Block Configuration