Datasheet

Section 22 ROM (Mask ROM Version, H8S/2148 F-ZTAT, H8S/2147N F-ZTAT, H8S/2144 F-ZTAT, and H8S/2142 F-ZTAT)

Rev. 4.00 Sep 27, 2006 page 647 of 1130

REJ09B0327-0400

Differences between Boot Mode and User Program Mode

Boot Mode User Program Mode

Entire memory erase Yes Yes

Block erase No Yes

Programming control program

Program/program-verify Program/program-verify

Erase/erase-verify

Note: * To be provided by the user, in accordance with the recommended algorithm.

Block Configuration

The flash memory is divided into two 32-kbyte blocks (128-kbyte version only), two 8-kbyte

blocks, one 16-kbyte block, one 28-kbyte block, and four 1-kbyte blocks.

Address H'00000

Address H'0FFFF

Address H'00000

1 kbyte

Address H'1FFFF

128 kbytes

32 kbytes

(b) 64-kbyte version(a) 128-kbyte version

32 kbytes

8 kbytes

16 kbytes

28 kbytes

1 kbyte

8 kbytes

16 kbytes

28 kbytes

64 kbytes

Figure 22.6 Flash Memory Block Configuration