HD64F3039F18 Datasheet, PDF (44/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

Section 2 CPU
2.3 Address Space
The maximum address space of the H8/300H CPU is 16 Mbytes. This LSI allows selection of a
normal mode and advanced mode 1-Mbyte mode or 16-Mbyte mode for the address space
depending on the MCU operation mode. Figure 2.2 shows the address ranges of the H8/3039
Group. For further details see section 3.6, Memory Map in Each Operating Mode.
The 1-Mbyte operating mode uses 20-bit addressing. The upper 4 bits of effective addresses are
ignored.
H'0000
H'00000
H'000000
H'FFFF
H'FFFFF
(a) 1-Mbyte mode
H'FFFFFF
(b) 16-Mbyte mode
1. Normal mode (64-Kbyte mode)
2. Advanced mode
Figure 2.2 Memory Map
Rev.3.00 Mar. 26, 2007 Page 20 of 682
REJ09B0353-0300