UPD78F0411GA-GAM-AX Datasheet, PDF (52/564 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 3 CPU ARCHITECTURE
3.1.4 Data memory addressing
Addressing refers to the method of specifying the address of the instruction to be executed next or the address of
the register or memory relevant to the execution of instructions.
Several addressing modes are provided for addressing the memory relevant to the execution of instructions for the
78K0/LC3, 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 3-5 to 3-8 show correspondence between data memory and addressing. For details of
each addressing mode, see 3.4 Operand Address Addressing.
Figure 3-5. Correspondence Between Data Memory and Addressing (μPD78F0400, 78F0410)
FFFFH
FF20H
FF1FH
FF00H
FEFFH
FEE0H
FEDFH
FE20H
FE1FH
FD00H
FCFFH
FA56H
FA55H
FA40H
FA3FH
Special function registers
(SFR)
256 x 8 bits
General-purpose
registers
32 x 8 bits
Internal high-speed RAM
512 x 8 bits
Reserved
LCD display RAM
22 × 8 bits
SFR addressing
Register addressing
Short direct
addressing
Direct addressing
Register indirect addressing
Based addressing
Based indexed addressing
Reserved
2000H
1FFFH
0000H
Flash memory
8192 x 8 bits
50
User’s Manual U18698EJ1V0UD