CC1350 datasheet(40/72 Pages) TI2

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CC1310

SWRS181D – SEPTEMBER 2015 – REVISED JULY 2018

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Detailed Description

6.4

Sensor Controller

The Sensor Controller contains circuitry that can be selectively enabled in standby mode. The peripherals

in this domain may be controlled by the Sensor Controller Engine, which is a proprietary power-optimized

CPU. This CPU can read and monitor sensors or perform other tasks autonomously; thereby significantly

reducing power consumption and offloading the main CM3 CPU.

A PC-based development tool called Sensor Controller Studio is used to write, test, and debug code for

the Sensor Controller. The tool produces C driver source code, which the System CPU application uses to

control and exchange data with the Sensor Controller. Typical use cases may be (but are not limited to)

the following:

•

Analog sensors using integrated ADC

•

Digital sensors using GPIOs with bit-banged I2C or SPI

•

Capacitive sensing

•

Waveform generation

•

Pulse counting

•

Key scan

•

Quadrature decoder for polling rotational sensors

The peripherals in the Sensor Controller include the following:

•

The low-power clocked comparator can be used to wake the device from any state in which the

comparator is active. A configurable internal reference can be used with the comparator. The output of

the comparator can also be used to trigger an interrupt or the ADC.

•

Capacitive sensing functionality is implemented through the use of a constant current source, a time-

to-digital converter, and a comparator. The continuous time comparator in this block can also be used

as a higher-accuracy alternative to the low-power clocked comparator. The Sensor Controller takes

care of baseline tracking, hysteresis, filtering, and other related functions.

•

The ADC is a 12-bit, 200-ksamples/s ADC with 8 inputs and a built-in voltage reference. The ADC can

be triggered by many different sources, including timers, I/O pins, software, the analog comparator,

and the RTC.

•

The analog modules can be connected to up to eight different GPIOs (see Table 6-1).

The peripherals in the Sensor Controller can also be controlled from the main application processor.

CC1350 Datasheet(PDF) 40 Page - Texas Instruments

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