AT3108U Demo board quick start guide
3. Building and running project
21
3.5.2
Touch Mode selection
Touch Mode operates in two sub-modes: Fast Mode (Active Mode) and Sleep Mode (Snap Mode).
1.
In Fast Mode, Touch Sensor always proceeds with its operation (including Touch Sensing
operation). When the system requires fast Touch Key Response Time regardless of the
amount of current consumption, it enters Fast Mode.
Figure 20. Timing Diagram of Touch Sensor Operation in Fast Mode (Active Mode)
2.
In Sleep Mode, Touch Sensor proceeds with its operation at Idle Duty intervals (including
Touch Sensing operation), and average amount of current consumption is reduced. Users can
set the Idle Duty time interval wider to reduce current consumption, however, this will slow
down the Touch Key Response Time.
Figure 21. Timing Diagram of Touch Sensor Operation in Sleep Mode (Snap Mode)
Содержание AT3108U
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