CC2652RSIP datasheet(44/67 Pages) TI

44 / 67 page

The Sensor Controller is an autonomous processor that can control the peripherals in the Sensor Controller

independently of the system CPU. This means that the system CPU does not have to wake up, for example to

perform an ADC sampling or poll a digital sensor over SPI, thus saving both current and wake-up time that would

otherwise be wasted. The Sensor Controller Studio tool enables the user to program the Sensor Controller,

control its peripherals, and wake up the system CPU as needed. All Sensor Controller peripherals can also be

controlled by the system CPU.

Note

The power, RF and clock management for the CC2652RSIP device require specific configuration and

handling by software for optimized performance. This configuration and handling is implemented in

the TI-provided drivers that are part of the CC2652RSIP software development kit (SDK). Therefore,

TI highly recommends using this software framework for all application development on the device.

The complete SDK with TI-RTOS (optional), device drivers, and examples are offered free of charge in

source code.

9.13 Clock Systems

The CC2652RSIP device has several internal system clocks.

The 48 MHz SCLK_HF is used as the main system (MCU and peripherals) clock. This can be driven by the

internal 48 MHz RC Oscillator (RCOSC_HF) or in-package 48 MHz crystal (XOSC_HF). Note that the radio

operation runs off the included, in-package 48 MHz crystal within the module.

SCLK_MF is an internal 2 MHz clock that is used by the Sensor Controller in low-power mode and also for

internal power management circuitry. The SCLK_MF clock is always driven by the internal 2 MHz RC Oscillator

(RCOSC_MF).

SCLK_LF is the 32.768 kHz internal low-frequency system clock. It can be used by the Sensor Controller for

ultra-low-power operation and is also used for the RTC and to synchronize the radio timer before or after

Standby power mode. SCLK_LF can be driven by the internal 32.8 kHz RC Oscillator (RCOSC_LF) or the

included, in-package 32.768 kHz crystal within the module.

When using the included, in-package crystal within the module, or the internal RC oscillator, the device can

output the 32 kHz SCLK_LF signal to other devices, thereby reducing the overall system cost.

9.14 Network Processor

Depending on the product configuration, the CC2652RSIP device can function as a wireless network processor

(WNP - a device running the wireless protocol stack with the application running on a separate host MCU), or as

a system-on-chip (SoC) with the application and protocol stack running on the system CPU inside the device.

In the first case, the external host MCU communicates with the device using SPI or UART. In the second case,

the application must be written according to the application framework supplied with the wireless protocol stack.

CC2652RSIP

SWRS262A – FEBRUARY 2021 – REVISED FEBRUARY 2022

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CC2652RSIP Datasheet(PDF) 44 Page - Texas Instruments