ams Datasheet

Page 13

[v1-00] 2016-Jul-12

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TSL2671 − Principles of Operation

System State Machine

The device provides control of proximity detection and power

management functionality through an internal state machine.

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 cycle through the Proximity and Wait states. If these

states are enabled, the device will execute each function. If the

PON bit is set to a 0, the state machine will continue until the

current conversion is complete and then go into a low-power

sleep mode.

Figure 15:

Simplified State Diagram

Note(s):

1. 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 0x00, bit 0. This

is represented as PON (r0x00:b0).

Principles of Operation

PON = 1

(r0x00:b0)

Sleep

Start

Wait

Prox

PON = 0

(r0x00:b0)