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ATmega3290P Datasheet(PDF) 70 Page - ATMEL Corporation |
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ATmega3290P Datasheet(HTML) 70 Page - ATMEL Corporation |
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70 / 385 page  70 8021E–AVR–07/09 ATmega329P/3290P 13.3.1 Alternate Functions of Port A The Port A has an alternate function as COM0:3 and SEG0:3 for the LCD Controller. Table 13-4 and Table 13-5 relates the alternate functions of Port A to the overriding signals shown in Figure 13-5 on page 68. Table 13-3. Port A Pins Alternate Functions Port Pin Alternate Function PA7 SEG (LCD Front Plane 3) PA6 SEG (LCD Front Plane 2) PA5 SEG (LCD Front Plane 1) PA4 SEG (LCD Front Plane 0) PA3 COM (LCD Back Plane 3) PA2 COM (LCD Back Plane 2) PA1 COM (LCD Back Plane 1) PA0 COM (LCD Back Plane 0) Table 13-4. Overriding Signals for Alternate Functions in PA7:PA4 Signal Name PA7/SEG3 PA6/SEG2 PA5/SEG1 PA4/SEG0 PUOE LCDEN LCDEN LCDEN LCDEN PUOV 0000 DDOE LCDEN LCDEN LCDEN LCDEN DDOV 0000 PVOE 0000 PVOV 0000 PTOE –––– DIEOE LCDEN LCDEN LCDEN LCDEN DIEOV 0000 DI –––– AIO LCDSEG LCDSEG LCDSEG LCDSEG |
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