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LC75818PT Folha de dados(PDF) 10 Page - Sanyo Semicon Device |
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LC75818PT Folha de dados(HTML) 10 Page - Sanyo Semicon Device |
10 / 43 page LC75818PT No.A0964-10/43 • ADRAM (Additional data RAM) ADRAM is RAM that is used to store the ADATA display data. ADRAM has a capacity of 16 ×5 bits, and the stored display data is displayed directly without the use of CGROM or CGRAM. The table below lists the correspondence between the 4-bit ADRAM address loaded into AC and the display position on the LCD panel. • When the ADRAM address loaded into AC is 0H. (Number of digit displayed: 16) Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ADRAM address (hexadecimal) 0 1 2 3 4 5 6 7 8 9 A B C D E F However, when the display shift is performed by specifying ADATA, the ADRAM address shifts as shown below. Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ADRAM address (hexadecimal) 1 2 3 4 5 6 7 8 9 A B C D E F 0 (shift left) Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ADRAM address (hexadecimal) F 0 1 2 3 4 5 6 7 8 9 A B C D E (shift right) Note: *4. The ADRAM address is expressed in hexadecimal. ADRAM address RA0 RA1 RA2 RA3 Hexadecimal Example: When the ADRAM address is AH. RA0 RA1 RA2 RA3 0 1 0 1 • CGROM (Character generator ROM) CGROM is ROM that is used to generate the 240 kinds of 5 ×7, 5×8, or 5×9 dot matrix character patterns from the 8-bit character codes. CGROM has a capacity of 240 ×45 bits. When a character code is written to DCRAM, the character pattern stored in CGROM corresponding to the character code is displayed at the position on the LCD corresponding to the DCRAM address loaded into AC. • CGRAM (Character generator RAM) CGRAM is RAM to which user programs can freely write arbitrary character patterns. Up to 16 kinds of 5 ×7, 5×8, or 5 ×9 dot matrix character patterns can be stored. CGRAM has a capacity of 16×45 bits. Most significant bit ↓ MSB Least significant bit ↓ LSB |
Nº de peça semelhante - LC75818PT |
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Descrição semelhante - LC75818PT |
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