3069RF-ZTAT Datasheet, PDF (42/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

2.3 Address Space
Figure 2.2 shows a simple memory map for the H8/3069R. The H8/300H CPU can address a
linear address space with a maximum size of 64 kbytes in normal mode, and 16 Mbytes in
advanced mode. For further details see section 3.6, Memory Map in Each Operating Mode.
The 1-Mbyte operating modes use 20-bit addressing. The upper 4 bits of effective addresses are
ignored.
H'0000
H'FFFF
H'00000
H'FFFFF
H'000000
H'FFFFFF
a. 1-Mbyte mode
b. 16-Mbyte mode
Normal mode*
Note: * Cannot be selected in H8/3069R
Advanced mode
Figure 2.2 Memory Map
Rev. 5.0, 09/04, page 20 of 978