Question: Which is correct for UART on the ATtiny 1 6 2 6 ? Group of answer choices The data register empty DREIF flag is set

Which is correct for UART on the ATtiny1626?
Group of answer choices
The data register empty DREIF flag is set when the TXDATA register is ready to be accessed.
The data register empty DREIF flag is set when the RXDATA register is ready to be accessed.
The USART0 peripheral only has one interrupt vector.
The USART0 peripheral automatically generates the active low chip select (CS) output to select the device for communication.

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