參數(shù)資料
型號(hào)： UPD78368A
廠商： NEC Corp.
英文描述： 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 16/8-BIT單晶片微控制器
文件頁數(shù)： 18/96頁
文件大?。?/td> 502K
代理商： UPD78368A
μ
PD78363A, 78365A, 78366A, 78368A
18
2.2
DATA MEMORY ADDRESSING
The
μ
PD78366A 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 F700H-FFFFH (In the
μ
PD78363A,
FC00H-FFFFH) 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 2-4. Data Memory Addressing (
μ
PD78368A)
FFFFH
FF20H
FF1FH
FE20H
FE1FH
F700H
F6FFH
FF00H
FEFFH
FE80H
FE7FH
FE00H
FDFFH
6C00H
BFFFH
0000H
Special function
register
(SFR)
General-purpose
register
Main RAM
Peripheral RAM
Internal ROM
Note
External memory
SFR addressing
Register addressing
Short direct addressing
Direct addressing
Register indirect addressing
Based addressing
Based indexed addressing
Based indexed addressing
(with displacement)
Note
Is external memory in the ROMless mode.
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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