tcs3771 ETC-unknow, tcs3771 Datasheet - Page 9

• Manufacturer Part Number: tcs3771
• Description: Color Light-to-digital Converter With Proximity Sensing
• Manufacturer: ETC-unknow

System State Machine
The LUMENOLOGY r Company
The TCS3771 provides control of RGBC, proximity detection, and power management functionality through an
internal state machine (Figure 7). After a power-on-reset, the device is in the sleep mode. As soon as the PON
bit is set, the device will move to the start state. It will then continue through the Prox, Wait, and RGBC states.
If these states are enabled, the device will execute each function. If the PON bit is set to 0, the state machine
will continue until all conversions are completed and then go into a low power sleep mode.
NOTE: In this document, the nomenclature uses the bit field name in italics followed by the register number and
bit number to allow the user to easily identify the register and bit that controls the function. For example, the
power on (PON) is in register 0, bit 0. This is represented as PON (r0:b0).
Figure 7. Simplified State Diagram
PON = 1 (r 0:b0)
Prox
PRINCIPLES OF OPERATION
r
www.taosinc.com
Sleep
Start
Wait
PON = 0 (r 0:b0)
COLOR LIGHT-TO-DIGITAL CONVERTER
RGBC
r
with PROXIMITY SENSING
Copyright E 2011, TAOS Inc.
TAOS110A − MARCH 2011
TCS3771
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