h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 92

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 2 CPU
If an odd address is specified in word or longword memory access, or as a branch address, the
least significant bit is regarded as 0, causing data to be accessed or an instruction code to be
fetched at the address preceding the specified address. (For further information, see section 2.5.2,
Memory Data Formats.)
2.7.2
Table 2.6 indicates how effective addresses are calculated in each addressing mode. In normal
mode the upper 8 bits of the effective address are ignored in order to generate a 16-bit address.
Rev. 3.00 Jan 18, 2006 page 64 of 1044
REJ09B0280-0300
Specified
by @aa:8
Effective Address Calculation
Figure 2.13 Branch Address Specification in Memory Indirect Mode
(a) Normal Mode
Branch address
Specified
by @aa:8
(b) Advanced Mode
Branch address
Reserved