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CC2650MODA

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SWRS187A – AUGUST 2016 – REVISED AUGUST 2016

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Product Folder Links: CC2650MODA

Detailed Description

Copyright © 2016, Texas Instruments Incorporated

(1)

Not including RTOS overhead

(2)

The Brown Out Detector is disabled between recharge periods in STANDBY. Lowering the supply voltage below the BOD threshold

between two recharge periods while in STANDBY may cause the BOD to lock the device upon wake-up until a Reset or POR releases

it. To avoid this, TI recommends that STANDBY mode is avoided if there is a risk that the supply voltage (VDD) may drop below the

specified operating voltage range. For the same reason, it is also good practice to ensure that a power cycling operation, such as a

battery replacement, triggers a Power-on-reset by ensuring that the VDD decoupling network is fully depleted before applying supply

voltage again (for example, inserting new batteries).

6.8

Power Management

To minimize power consumption, the CC2650MODA device supports a number of power modes and

power-management features (see Table 6-2).

Table 6-2. Power Modes

MODE

SOFTWARE-CONFIGURABLE POWER MODES

RESET PIN

HELD

ACTIVE

IDLE

STANDBY

SHUTDOWN

CPU

Active

Off

Off

Off

Off

Flash

On

Available

Off

Off

Off

SRAM

On

On

On

Off

Off

Radio

Available

Available

Off

Off

Off

Supply System

On

On

Duty Cycled

Off

Off

Current

1.45 mA + 31 µA/MHz

550 µA

1 µA

0.15 µA

0.1 µA

–

14 µs

151 µs

1015 µs

1015 µs

Register retention

Full

Full

Partial

No

No

SRAM retention

Full

Full

Full

No

No

High-speed clock

XOSC_HF or

RCOSC_HF

XOSC_HF or

RCOSC_HF

Off

Off

Off

Low-speed clock

XOSC_LF or

RCOSC_LF

XOSC_LF or

RCOSC_LF

XOSC_LF or

RCOSC_LF

Off

Off

Peripherals

Available

Available

Off

Off

Off

Sensor Controller

Available

Available

Available

Off

Off

Wake up on RTC

Available

Available

Available

Off

Off

Wake up on pin edge

Available

Available

Available

Available

Off

Wake up on reset pin

Available

Available

Available

Available

Available

Brown Out Detector (BOD)

Active

Active

Off

N/A

Power On Reset (POR)

Active

Active

Active

Active

N/A

In active mode, the application CM3 CPU is actively executing code. Active mode provides normal

operation of the processor and all of the peripherals that are currently enabled. The system clock can be

any available clock source (see Table 6-2).

In idle mode, all active peripherals can be clocked, but the Application CPU core and memory are not

clocked and no code is executed. Any interrupt event will bring the processor back into active mode.

In standby mode, only the always-on domain (AON) is active. An external wake event, RTC event, or

sensor-controller event is required to bring the device back to active mode. MCU peripherals with retention

do not need to be reconfigured when waking up again, and the CPU continues execution from where it

went into standby mode. All GPIOs are latched in standby mode.

In shutdown mode, the device is turned off entirely, including the AON domain and the Sensor Controller.

The I/Os are latched with the value they had before entering shutdown mode. A change of state on any

I/O pin, defined as a wake from Shutdown pin, wakes up the device and functions as a reset trigger. The

CPU can differentiate between a reset in this way, a reset-by-reset pin, or a power-on-reset by reading the

reset status register. The only state retained in this mode is the latched I/O state and the flash memory

contents.