H838024 datasheet(198/697 Pages) RENESAS

198 / 697 page

Section 6 ROM

Rev. 7.00 Mar 10, 2005 page 156 of 652

REJ09B0042-0700

6.5.3

Block Configuration

Figure 6.8 shows the block configuration of the flash memory. The thick lines indicate erasing

units, the narrow lines indicate programming units, and the values are addresses. In versions with

32 Kbytes of flash memory, the flash memory is divided into 1 Kbyte × 4 blocks and 28 Kbytes ×

1 block. In versions with 16 Kbytes of flash memory, the flash memory is divided into 1 Kbyte × 4

blocks and 12 Kbytes × 1 block. Erasing is performed in these units. 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

1 Kbyte

Erase unit

1 Kbyte

Erase unit

1 Kbyte

Erase unit

1 Kbyte

Erase unit

28 Kbytes

Erase unit

Figure 6.8(1) Block Configuration of 32-Kbyte Flash Memory

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