HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 44

• Manufacturer Part Number: HD6413003RVF
• Description: microcontroller (MCU)
• Manufacturer: RENESAS [Renesas Technology Corp]

2.5.2 Memory Data Formats
Figure 2-8 shows the data formats on memory. The H8/300H CPU can access word data and
longword data on memory, but word or longword data must begin at an even address. If an attempt
is made to access word or longword data at an odd address, no address error occurs but the least
significant bit of the address is regarded as 0, so the access starts at the preceding address. This
also applies to instruction fetches.
Data Type
Word data
Word data
Longword data
Legend
ERn:
En:
Rn:
RnH:
RnL:
MSB:
LSB:
General register
General register E
General register R
General register RH
General register RL
Most significant bit
Least significant bit
General
Register
Rn
En
ERn
Figure 2-7 General Register Data Formats (2)
MSB
MSB
MSB
Data Format
15
15
31
26
LSB
LSB
16
0
0
15
LSB
0