Hitachi H8S/2378, H8S/2378R Series Hardware Manual page 75

Data Type Register Number
Word data Rn
Word data En
15
MSB
Longword data ERn
31
MSB
Legend
ERn : General register ER
En : General register E
Rn : General register R
RnH : General register RH
RnL : General register RL
MSB : Most significant bit
LSB : Least significant bit
Figure 2.9 General Register Data Formats (2)
Data Image
15
MSB
0
LSB
16 15
En
LSB
LSB
Rn
Rev. 1.0, 09/01, page 31 of 904
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