Figure 2.12 General Register Data Formats - Renesas H8SX/1500 Series Hardware Manual

Section 2 CPU
1-bit data
1-bit data
4-bit BCD data
4-bit BCD data
Byte data
Byte data
Word data
Word data
Longword data
Rev. 3.00 Mar. 14, 2006 Page 34 of 804
REJ09B0104-0300
RnH
RnL
RnH
RnL
RnH
RnL
Rn
En
ERn
15
MSB
31
MSB En
[Legend]
ERn:
General register ER
En:
General register E
Rn:
General register R
RnH:
General register RH

Figure 2.12 General Register Data Formats

7 0
7 6 5 4 3 2 1 0
7
Don't care 7 6 5 4 3 2 1 0
7 4 3 0
Upper Lower
7
Don't care Upper
7 0
MSB LSB
7
Don't care
MSB
15
MSB
0
LSB
16 15
Rn
RnL: General register RL
MSB: Most significant bit
LSB: Least significant bit
Don't care
0
Don't care
4 3 0
Lower
Don't care
0
LSB
0
LSB
0
LSB