HD6413258F10V Datasheet, PDF (43/301 Pages) Renesas Technology Corp – Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp.

3.4.1 Data Formats in General Registers
Data of all the sizes above can be stored in general registers as shown in figure 3-3.
Data type
1-Bit data
Register No.
RnH
Data format
7
0
765 43210
Don't-care
1-Bit data
RnL
7
0
Don't-care 7 6 5 4 3 2 1 0
Byte data
RnH
7
0
M
S
B
L
S
B
Don't-care
Byte data
RnL
7
0
Don't-care
M
S
B
L
S
B
15
0
Word data
Rn
M
S
B
L
S
B
4-Bit BCD data
RnH
7 43 0
Upper digit Lower digit
Don't-care
4-Bit BCD data
RnL
7 43 0
Don't-care ^{Upper digit Lower digit}
Figure 3-3. Register Data Formats
Note:
RnH: Upper digit of general register
RnL: Lower digit of general register
MSB: Most significant Bit
LSB: Least significant Bit
Fig. 3-3
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