p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 88

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 2 CPU
2.7.9
Table 2.13 indicates how effective addresses are calculated in each addressing mode. In normal
mode, the upper eight bits of the effective address are ignored in order to generate a 16-bit
address.
Table 2.13 Effective Address Calculation (1)
Rev. 1.00 Sep. 21, 2006 Page 50 of 658
REJ09B0310-0100
Register indirect with post-increment or
pre-decrement
• Register indirect with post-increment @ERn+
• Register indirect with pre-decrement @-ERn
Register direct (Rn)
Register indirect (@ERn)
Addressing Mode and Instruction Format
Effective Address Calculation
Operand Size
Byte
Word
Longword
Sign extension
Effective Address Calculation
General register contents
General register contents
General register contents
General register contents
1, 2, or 4
1, 2, or 4
Operand is general register contents.
Effective Address (EA)