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2.2 CPU Operating Modes
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The H8/300H CPU has two operating modes: normal and advanced. Normal mode supports a
maximum 64-kbyte address space. Advanced mode supports up to 16 Mbytes. See figure 2-1.
The H8/3048 Series can be used only in advanced mode. (Information from this point on will
apply to advanced mode unless otherwise stated.)
CPU operating modes
Normal mode
Advanced mode
Figure 2-1 CPU Operating Modes
17
Maximum 64 kbytes, program
and data areas combined
Maximum 16 Mbytes, program
and data areas combined
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