Moteur de recherche de fiches techniques de composants électroniques |
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LC7581E Fiches technique(PDF) 8 Page - ON Semiconductor |
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LC7581E Fiches technique(HTML) 8 Page - ON Semiconductor |
8 / 54 page LC75810E/T No.7141-8/54 Block Functions • AC (Address counter) AC is a counter that provides the DCRAM address. The address is automatically modified internally, and the LCD display state is retained. • DCRAM (Data control RAM) DCRAM is the 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 64 × 8 bits, and can hold 64 characters. The table below lists the correspondence between the 6-bit DCRAM address loaded into AC and the display position on the LCD panel. • For a 64 digits × 1 line display structure (For a “set display technique” instruction with 0Z1 = 0 and 0Z2 = 0) When the DCRAM address loaded into AC is 00H Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 61 62 63 64 DCRAM address (hexadecimal) First line 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 3C 3D 3E 3F However, when the display smooth scrolling is performed, the DCRAM address shifts as follows. Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 61 62 63 64 DCRAM address (hexadecimal) First line 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 3D 3E 3F 00 Shift to the left by 1 character digit Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 61 62 63 64 DCRAM address (hexadecimal) First line 3F 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 3B 3C 3D 3E Shift to the right by 1 character digit Note that the display area on the LCD is display digits 1 to 16 on the first line when a display technique is 5 × 7, 5 × 8, or 5 × 9 dots, and it is display digits 1 to 13 on the first line when a display technique is 6 × 7, 6 × 8, or 6 × 9 dots. • For a 32 digits × 2 lines display structure (For a “set display technique” instruction with 0Z1 = 1 and 0Z2 = 0) When the DCRAM address loaded into AC is 00H Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 29 30 31 32 First line 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 1C 1D 1E 1F DCRAM address (hexadecimal) Second line 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 3C 3D 3E 3F However, when the display smooth scrolling is performed, the DCRAM address shifts as follows. Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 29 30 31 32 First line 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 1D 1E 1F 00 DCRAM address (hexadecimal) Second line 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 3D 3E 3F 20 Shift to the left by 1 character digit Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 29 30 31 32 First line 1F 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 1B 1C 1D 1E DCRAM address (hexadecimal) Second line 3F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 3B 3C 3D 3E Shift to the right by 1 character digit Display digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 29 30 31 32 First line 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 3C 3D 3E 3F DCRAM address (hexadecimal) Second line 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 1C 1D 1E 1F Shift to the up or down by 1 character digit Note that the display area on the LCD is display digits 1 to 16 on the first line when a display technique is 5 × 7, 5 × 8, or 5 × 9 dots, and it is display digits 1 to 13 on the first line when a display technique is 6 × 7, 6 × 8, or 6 × 9 dots. |
Numéro de pièce similaire - LC7581E |
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Description similaire - LC7581E |
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