TCS3472_17 Datasheet, PDF (13/40 Pages) ams AG – Red, Green, Blue (RGB), and Clear Light

TCS3472 − Principles of Operation
Principles of Operation
Figure 17:
Simplified State Diagram
System States
An internal state machine provides system control of the RGBC
and power management features of the device. At power up,
an internal power-on-reset initializes the device and puts it in
a low-power Sleep state.
When a start condition is detected on the I²C bus, the device
transitions to the Idle state where it checks the Enable Register
(0x00) PON bit. If PON is disabled, the device will return to the
Sleep state to save power. Otherwise, the device will remain in
the Idle state until the RGBC function is enabled (AEN). Once
enabled, the device will execute the Wait and RGBC states in
sequence as indicated in Figure 16. Upon completion and
return to Idle, the device will automatically begin a new
Wait-RGBC cycle as long as PON and AEN remain enabled.
ams Datasheet
[v1-02] 2016-Feb-08
Page 13
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