UPD78361A Datasheet, PDF (16/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78361A, 78362A
2.2 DATA MEMORY ADDRESSING
The µPD78362A is provided with many addressing modes that improve the operability of the memory and
can be used with high-level languages. Especially, an area of addresses FC00H-FFFFH (F700H-FFFFH
in the µPD78361A) to which the data memory is mapped can be addressed in a mode peculiar to the functions
provided in this area, including special function registers (SFR) and general-purpose registers.
Figure 2-3. Data Memory Addressing (µPD78361A)
FFFFH
FF20H
FF1FH
FF00H
FEFFH
FE80H
FE7FH
FE20H
FE1FH
FE00H
FDFFH
Special function
register
(SFR)
General-purpose
register
Main RAM
Peripheral RAM
F700H
F6FFH
Cannot be used
8000H
7FFFH
Internal ROM
SFR addressing
Register addressing
Short direct addressing
Direct addressing
Register indirect addressing
Based addressing
Based indexed addressing
Based indexed addressing
(with displacement)
0000H
Caution For word access (including stack oprations) to the main RAM area (FE00H-FEFFH), the
address that specifies the operand must be an even value.
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