AFE4110 datasheet(17/68 Pages) TI

17 / 68 page

AFE4110

www.ti.com

SLLSE48

– JANUARY 2012

Operation Modes

The AFE4110 has one active mode and six software selectable low-power modes of operation. An interrupt

event can wake up the device from any of the five low-power modes, service the request and restore back to the

low-power mode on return from the interrupt program.

The following seven operating modes can be configured by software:

•

Active mode AM;

– All clocks are active

•

Low-power mode 0 (LPM0);

– CPU is disabled

– ACLK and SMCLK remain active for all sources

– MCLK is disabled

•

Low-power mode 1 (LPM1);

– CPU is disabled

– ACLK and SMCLK remain active (for LF-Osc and CLKIN as source; HF-Osc is mapped to LF-Osc as

source)

– MCLK is disabled

•

Low-power mode 2 (LPM2);

– CPU is disabled

– MCLK is disabled

– SMCLK is disabled

– ACLK remains active for all sources

•

Low-power mode 3 (LPM3);

– CPU is disabled

– MCLK is disabled

– SMCLK is disabled

– ACLK remains active (for LF-Osc and CLKIN as source; HF-Osc is mapped to LF-Osc as source)

•

Low-power mode 4 (LPM4);

– CPU is disabled

– ACLK is disabled

– MCLK is disabled

– Oscillators are stopped (exclude Activation Block 1kHz local oscillator)

•

Low-power mode 5 (LPM5);

– CPU core and peripherials are powered off (Application and Calibration RAM contents are not retained.)

– Activation Block, 1kHz local oscillator, and 8 bytes RAM remain active

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