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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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ATtiny261-ESSZ Scheda tecnica(PDF) 69 Page - ATMEL Corporation |
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ATtiny261-ESSZ Scheda tecnica(HTML) 69 Page - ATMEL Corporation |
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69 / 227 page  69 7753C–AVR–07/09 ATtiny261/ATtiny461/ATtiny861 12.4 Register Description 12.4.1 MCUCR – MCU Control Register • Bit 6 – PUD: Pull-up Disable When this bit is written to one, the pull-ups in the I/O ports are disabled even if the DDxn and PORTxn Registers are configured to enable the pull-ups ({DDxn, PORTxn} = 0b01). See “Con- figuring the Pin” on page 56 for more details about this feature. 12.4.2 PORTA – Port A Data Register 12.4.3 DDRA – Port A Data Direction Register 12.4.4 PINA – Port A Input Pins Address 12.4.5 PORTB – Port B Data Register 12.4.6 DDRB – Port B Data Direction Register 12.4.7 PINB – Port B Input Pins Address Bit 7 6 5 4 3 2 1 0 0x35 (0x55) -PUD SE SM1 SM0 - ISC01 ISC00 MCUCR Read/Write R R/W R/W R/W R/W R R R Initial Value 0 0 0 0 0 0 0 0 Bit 7 654321 0 0x1B (0x3B) PORTA7 PORTA6 PORTA5 PORTA4 PORTA3 PORTA2 PORTA1 PORTA0 PORTA Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 0 000000 0 Bit 7 654321 0 0x1A (0x3A) DDA7 DDA6 DDA5 DDA4 DDA3 DDA2 DDA1 DDA0 DDRA Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 0 000000 0 Bit 76543210 0x19 (0x39) PINA7 PINA6 PINA5 PINA4 PINA3 PINA2 PINA1 PINA0 PINA Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value N/A N/A N/A N/A N/A N/A N/A N/A Bit 7 65 43210 0x18 (0x38) PORTB7 PORTB6 PORTB5 PORTB4 PORTB3 PORTB2 PORTB1 PORTB0 PORTB Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 0 0 0 0 0 0 0 0 Bit 7 654321 0 0x17 (0x37) DDB7 DDB6 DDB5 DDB4 DDB3 DDB2 DDB1 DDB0 DDRB Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value 0 000000 0 Bit 76543210 0x16 (0x36) PINB7 PINB6 PINB5 PINB4 PINB3 PINB2 PINB1 PINB0 PINB Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Initial Value N/A N/A N/A N/A N/A N/A N/A N/A |
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