h8s2277 Renesas Electronics Corporation., h8s2277 Datasheet - Page 70

• Manufacturer Part Number: h8s2277
• Description: Hitachi Single-chip Microcomputer H8s/2276 Series
• Manufacturer: Renesas Electronics Corporation.

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 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.
48
Specified
by @aa:8
Note: * Not available in the LSI .
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