will I2C bus work in power down mode? i am using RTC for my project. so i have to keep it running in any mode of controller and wants to wake up the controller after certain time by RTC. So is it possible to do so?
lets suppose i wants to send the data through UART pin after every 1hour. so i need RTC to calculate that time and when it reach at that time it has to generate interrupt to controller so controller will wake up and sends the data throgh UART pins.Is this arangement possible?
i am only concern that wheather I2C pin of atmega328P will work even in power down mode or not?
or am i really suppose to concern about that?because i will use backup battery for RTC. so will it capable to generate interrupt after reaching certain time interval value?
and can i use PCF8563 RTC chip instead of DS1307??????????