UPD78F0078GK-9ET-A Renesas Electronics America, UPD78F0078GK-9ET-A Datasheet - Page 71

• Manufacturer Part Number: UPD78F0078GK-9ET-A
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0078GK-9ET-A

• Lead Free Status / Rohs Status: Supplier Unconfirmed

5.1.5 Data memory addressing
of the register or memory relevant to the execution of instructions.
the PD780078, 780078Y Subseries, 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 5-4 to 5-6 show the correspondence between data memory
and addressing. For details of each addressing mode, see 5.4 Operand Address Addressing.
Addressing refers to the method of specifying the address of the instruction to be executed next or the address
Several addressing modes are provided for addressing the memory relevant to the execution of instructions for
FFFFH
FF20H
FF1FH
FF00H
FEFFH
FEE0H
FEDFH
FE20H
FE1FH
FB00H
FAFFH
F800H
F7FFH
F400H
F3FFH
C000H
BFFFH
0000H
Figure 5-4. Correspondence Between Data Memory and Addressing ( PD780076, 780076Y)
General-purpose registers
Internal high-speed RAM
Internal expansion RAM
32
External memory
Special function
49152
registers (SFRs)
Internal ROM
13312
1024
1024
Reserved
256
8 bits
8 bits
8 bits
8 bits
8 bits
8 bits
CHAPTER 5 CPU ARCHITECTURE
User’s Manual U14260EJ4V0UD
SFR addressing
Register addressing
Short direct
addressing
Direct addressing
Register indirect
addressing
Based addressing
Based indexed
addressing
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