upd78f0124m6gba1-8et Renesas Electronics Corporation., upd78f0124m6gba1-8et Datasheet - Page 53
upd78f0124m6gba1-8et
Manufacturer Part Number
upd78f0124m6gba1-8et
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0124M6GBA1-8ET.pdf
(545 pages)
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3.1.4 Data memory addressing
the register or memory relevant to the execution of instructions.
78K0/KD1, based on operability and other considerations. For areas containing data memory in particular, special
addressing methods designed for the functions of special function registers (SFR) and general-purpose registers are
available for use. Figures 3-6 to 3-10 show correspondence between data memory and addressing. For details of
each addressing mode, refer to 3.4 Operand Address Addressing.
Addressing refers to the method of specifying the address of the instruction to be executed next or the address of
Several addressing modes are provided for addressing the memory relevant to the execution of instructions for the
F
F
F
F
F
F
F
F
F
F
F
2
1
0
D
C
F
F
F
F
E
E
E
E
E
F
0
0
D
F
2
1
0
F
E
2
1
0
F
F
0
0
F
0
F
0
F
0
F
0
F
0
F
F
0
0
H
H
H
H
H
H
H
H
H
H
H
H
H
H
General-purpose registers
Figure 3-6. Correspondence Between Data Memory and Addressing ( PD780121)
Special function registers (SFR)
Internal high-speed RAM
32
Internal ROM
8192
256
512
Reserved
8 bits
8 bits
8 bits
8 bits
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U16315EJ3V1UD
SFR addressing
Register addressing
Short direct
addressing
Direct addressing
Register indirect addressing
Based addressing
Based indexed addressing
53
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