2.2 CPU Operating Modes
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
H8/3004 and H8/3005 can only be used in advanced mode.
Normal mode*
Maximum 64 kbytes, program
and data areas combined
CPU operating modes
Advanced mode
Maximum 16 Mbyte, program
and data areas combined
Note: * Normal mode cannot be used with the H8/3004 or H8/3005.
Figure 2-1 CPU Operating Modes
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