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2.2
CPU Operating Modes
The H8S/2319 Group and H8S/2318 Group CPUs have advanced operating mode. Advanced
mode supports a maximum 16-Mbyte total address space (architecturally a maximum 16-Mbyte
program area and a maximum of 4 Gbytes for program and data areas combined). The mode is
selected by the mode pins of the microcontroller.
Advanced Mode
Address Space: Linear access is provided to a 16-Mbyte maximum address space (architecturally
a maximum 16-Mbyte program area and a maximum 4-Gbyte data area, with a maximum of 4
Gbytes for program and data areas combined).
Extended Registers (En): The extended registers (E0 to E7) can be used as 16-bit registers, or as
the upper 16-bit segments of 32-bit registers or address registers.
Instruction Set: All instructions and addressing modes can be used.
Rev. 5.00, 12/03, page 28 of 1088
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