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CPU
8-Bit Memory Direct Addressing Area (Addresses H'FF00 to H'FFFF)
The H8/300L CPU provides a short absolute addressing mode for the MOV instruction. This
allows the H8/300L CPU to access locations H'FF00 to H'FFFF rapidly and programs to be
implemented compactly using these short instructions. Since RAM is mapped to locations
H'FF00 to H'FF7F and I/O registers are mapped to locations H'FF80 to H'FFFF, programs can
implement high speed data handling by making effective use of the short absolute addressing
mode.
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