32.6.2.5.1 Disabling the Transmitter

The transmitter is disabled by writing ‘0’ to the Transmitter Enable bit in the CTRLB register (CTRLB.TXEN).

Disabling the transmitter completes only after any ongoing and pending transmissions are completed; in other words, there are no data in the Transmit Shift register and TxDATA to transmit.

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