Datasheet

Section 22 Flash Memory
R01UH0309EJ0500 Rev. 5.00 Page 1147 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
22.1 Memory Map
This ROM is divided into the user ROM and the data flash.
Figure 22.1 shows a block diagram of the flash memory.
The user ROM and data flash are divided into multiple blocks. The user ROM can be programmed
in user programming mode, boot mode, or programmer mode.
H'030000
H'03FFFF
H'020000
H'02FFFF
H'010000
H'01FFFF
H'000000
H'00FFFF
H'F00FFF
H'F00000
Block A
Block B
H'F01FFF
H'F01000
User ROM
Data flash
Block 2: 64K
Block 0: 64K
Block 1: 64K
Block 3: 64K
Notes: 1. To specify a block, use an even address in the block.
2. This is a block diagram in ROM-enabled mode.
128-Kbyte version
256-Kbyte version
Figure 22.1 Block Diagram of Flash Memory