Renesas H8 Series Hardware Manual

Section 2 CPU
Rev. 7.00 Mar 10, 2005 page 30 of 652
REJ09B0042-0700
2.3.1 Data Formats in General Registers
Data of all the sizes above can be stored in general registers as shown in figure 2.3.
76543210 Don't care
Data Type Register No. Data Format
70
1-bit data RnH
76543210Don't care
70
1-bit data RnL
MSB LSB Don't care
70
Byte data RnH
Byte data RnL
Word data Rn
4-bit BCD data RnH
4-bit BCD data RnL
[Legend]
RnH:
RnL:
MSB:
LSB:
Upper byte of general register
Lower byte of general register
Most significant bit
Least significant bit
MSB LSB Don't care
70
MSB LSB
15 0
Upper digit Lower digit
Don't care
7034
Don't care
Upper digit Lower digit
70
34
Figure 2.3 Register Data Formats

Renesas H8 Series Specifications

General

Brand	Renesas
Model	H8 Series
Category	Computer Hardware
Language	English