Rainbow-electronics ATmega64C1 Uživatelský manuál stáhnout pdf (Strana 11)

100

101

7647A–AVR–02/08

ATmega32/64/M1/C1

The various special features of Port E are elaborated in “Alternate Functions of Port E” on page

77 and “Clock Systems and their Distribution” on page 29.

2.3.7 AVCC

AVCC is the supply voltage pin for the A/D Converter, D/A Converter, Current source. It should

be externally connected to V

, even if the ADC, DAC are not used. If the ADC is used, it should

be connected to V

through a low-pass filter.

2.3.8 AREF

This is the analog reference pin for the A/D Converter.

2.4 About Code Examples

This documentation contains simple code examples that briefly show how to use various parts of

the device. These code examples assume that the part specific header file is included before

compilation. Be aware that not all C compiler vendors include bit definitions in the header files

and interrupt handling in C is compiler dependent. Please confirm with the C compiler documen-

tation for more details.

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