Microchip Technology megaAVR 0 Series Manual page 355

MCMD[1:0] DIR Description
1 Execute Acknowledge Action (no action) succeeded by a byte send operation.
0x3 X STOP - Execute Acknowledge Action succeeded by issuing a Stop condition.
Note:
1. For a master being a sender, it will normally wait for new data written to the Master Data register
(TWIn.MDATA).
The acknowledge action bits and command bits can be written at the same time.
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2018 Microchip Technology Inc.
Datasheet Preliminary
®
megaAVR 0-Series
Two-Wire Interface (TWI)
DS40002015A-page 355
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