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H8/3002 数据表(PDF) 40 Page - Renesas Technology Corp

部件名 H8/3002
功能描述  Microcomputer
PDF  700 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8/3002 数据表(HTML) 40 Page - Renesas Technology Corp

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2.5 Data Formats
The H8/300H CPU can process 1-bit, 4-bit (BCD), 8-bit (byte), 16-bit (word), and 32-bit
(longword) data. Bit-manipulation instructions operate on 1-bit data by accessing bit n (n = 0, 1,
2, …, 7) of byte operand data. The DAA and DAS decimal-adjust instructions treat byte data as
two digits of 4-bit BCD data.
2.5.1 General Register Data Formats
Figures 2-6 and 2-7 show the data formats in general registers.
Figure 2-6 General Register Data Formats (1)
7
RnH
RnL
RnH
RnL
RnH
RnL
1-bit data
1-bit data
4-bit BCD data
4-bit BCD data
Byte data
Byte data
6 543 21 0
70
Don’t care
76 543 21 0
70
Don’t care
Don’t care
70
43
Lower digit
Upper digit
7
43
Lower digit
Upper digit
Don’t care
0
70
Don’t care
MSB
LSB
Don’t care
70
MSB
LSB
Data Type
Data Format
General
Register
25



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