TCS3471 Datasheet, PDF (8/23 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – COLOR LIGHT-TO-DIGITAL CONVERTER

TCS3471
COLOR LIGHT-TO-DIGITAL CONVERTER
PRINCIPLES OF OPERATION
TAOS115 − MARCH 2011
System State Machine
The TCS3471 provides control of RGBC and power management functionality through an internal state
machine (Figure 6). 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 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.
lid ^Sleep
PON = 1 (r 0:b0)
PON = 0 (r 0:b0)
a _Start
v _Wait
RGBC
ill _{Figure 6. Simplified State Diagram}
t _{NOTE: In this document, the nomenclature uses the bit field name in italics followed by the register number and}
G _{s bit number to allow the user to easily identify the register and bit that controls the function. For example, the}
Technicaaml ^{scoAntent power on (PON) is in register 0, bit 0. This is represented as PON (r0:b0).}
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