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HD64F3437TF16 Datasheet, PDF (53/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device. | |||
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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.
Data Type Register No.
Data Format
1-bit data
7
0
RnH 7 6 5 4 3 2 1 0
Donât care
1-bit data
RnL
Donât care
7
0
76543210
Byte data
7
RnH MSB
0
LSB
Donât care
7
0
Byte data
RnL
Donât care
MSB
LSB
15
0
Word data
Rn MSB
LSB
4-bit BCD data
RnH
7
4
Upper digit
3
0
Lower digit
Donât care
4-bit BCD data RnL
Donât care
7
4
Upper digit
3
0
Lower digit
Legend:
RnH: Upper digit of general register
RnL: Lower digit of general register
MSB: Most significant bit
LSB: Least significant bit
Figure 2.3 Register Data Formats
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