UPD78F1502AGK-GAK-AX Datasheet, PDF (132/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 3 CPU ARCHITECTURE
3.4.7 Based addressing
[Function]
Based addressing uses the contents of a register pair specified with the instruction word as a base address, and 8-
bit immediate data or 16-bit immediate data as offset data. The sum of these values is used to specify the target
address.
[Operand format]
Identifier
−
−
−
−
−
−
Description
[HL + byte], [DE + byte], [SP + byte] (only the space from F0000H to FFFFFH is specifiable)
word[B], word[C] (only the space from F0000H to FFFFFH is specifiable)
word[BC] (only the space from F0000H to FFFFFH is specifiable)
ES:[HL + byte], ES:[DE + byte] (higher 4-bit addresses are specified by the ES register)
ES:word[B], ES:word[C] (higher 4-bit addresses are specified by the ES register)
ES:word[BC] (higher 4-bit addresses are specified by the ES register)
Figure 3-27. Example of [SP+byte]
FFFFFH
SP
OP code
byte
Target memory
F0000H
Memory
R01UH0004EJ0501 Rev.5.01
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Jun 20, 2011