27.2.1 TWI Terminology
The following definitions are frequently encountered in this section.
Term | Description |
---|---|
Master | The device that initiates and terminates a transmission. The Master also generates the SCL clock. |
Slave | The device addressed by a Master. |
Transmitter | The device placing data on the bus. |
Receiver | The device reading data from the bus. |
This device has one instance of TWI. For this reason, the instance index n is omitted.
The Power Reduction TWI bit in the Power Reduction Register (PRRn.PRTWI) must be written to '0' to enable the two-wire Serial Interface.
TWI0 is in PRR.