5.2.1 Start Condition

A Start condition occurs when there is a high-to-low transition on the SDA pin while the SCL pin is at a stable logic ‘1’ state, which will bring the device out of Standby mode. The host initiates any data transfer sequence with a Start condition; thus, every command must commence with this condition. The device continuously monitors the SDA and SCL pins for a Start condition and will only respond when one is detected. Refer to Figure 5-1 for more details.