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LC75811E Datasheet(PDF) 7 Page - Sanyo Semicon Device |
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LC75811E Datasheet(HTML) 7 Page - Sanyo Semicon Device |
7 / 27 page No. 5915-7/27 LC75811E, 75811W Block Functions • AC (address counter) AC is a counter that provides the addresses used for DCRAM and ADRAM. The address is automatically modified internally, and the LCD display state is retained. • DCRAM (data control RAM) DCRAM is RAM that is used to store display data expressed as 8-bit character codes. (These character codes are converted to 5 × 7, 5 × 8, or 5 × 9 dot matrix character patterns using CGROM or CGRAM.) DCRAM has a capacity of 48 × 8 bits, and can hold 48 characters. The table below lists the correspondence between the 6-bit DCRAM address loaded into AC and the display position on the LCD panel. • When the DCRAM address loaded into AC is 00H. Display digit 1 2 3 4 5 6 7 8 9 10 11 12 DCRAM address (hexadecimal) 00 01 02 03 04 05 06 07 08 09 0A 0B However, when the display shift is performed by specifying MDATA, the DCRAM address shifts as shown below. Note:*2. The DCRAM addresses are expressed in hexadecimal. Example: When the DCRAM address is 2EH. Note:*3. 5 × 7 dots ... 12-digit display 5 × 7 dots 5 × 8 dots ... 12-digit display 4 × 8 dots 5 × 9 dots ... 12-digit display 3 × 9 dots Display digit 1 2 3 4 5 6 7 8 9 10 11 12 DCRAM address (hexadecimal) 01 02 03 04 05 06 07 08 09 0A 0B 0C (Left shift) Display digit 1 2 3 4 5 6 7 8 9 10 11 12 DCRAM address (hexadecimal) 2F 00 01 02 03 04 05 06 07 08 09 0A DCRAM address DA0 DA1 DA2 DA3 DA4 DA5 (Right shift) LSB DA0 DA1 DA2 DA3 DA4 DA5 0 1 1 1 0 1 MSB Least significant bit Most significant bit Hexadecimal Hexadecimal |
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