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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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HD6432351 Datenblatt(PDF) 69 Page - Renesas Technology Corp |
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HD6432351 Datenblatt(HTML) 69 Page - Renesas Technology Corp |
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69 / 1025 page  Section 2 CPU Rev. 3.00 Sep 15, 2006 page 35 of 988 REJ09B0330-0300 2.5 Data Formats The 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 Figure 2.10 shows the data formats in general registers. 76543210 Don’t care 70 Don’t care 76543210 43 70 70 Don’t care Upper Lower LSB MSB LSB Data Type Register Number Data Format 1-bit data 1-bit data 4-bit BCD data 4-bit BCD data Byte data Byte data RnH RnL RnH RnL RnH RnL MSB Don’t care Upper Lower 43 70 Don’t care 70 Don’t care 70 Figure 2.10 General Register Data Formats |
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