HD6413008VF25 Datasheet, PDF (65/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

2. CPU
2.3 Address Space
Figure 2.2 shows a simple memory map for the H8/3008. 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'000000
H'FFFFF
Normal mode
H'FFFFFF
a. 1-Mbyte mode
b. 16-Mbyte mode
Advanced mode
Figure 2.2 Memory Map
Rev.4.00 Aug. 20, 2007 Page 19 of 638
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