MT7697 datasheet(16/81 Pages) ETC2

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MT7697

Internet-of-Things Wireless Connectivity

Page 16 of 81

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MCU mode

Description

Wake-up time

Power

internal timer, external wake-up events, or the wake-up events

from Wi-Fi radio or Bluetooth ratio.

The typical scenarios which N9 operates in and the power state transition are summarized in the

following table.

Table 2-4. Power State Transition Scenarios for N9

Scenario

Description

State transition

All functions are idle and the N9 firmware triggers to enter the

sleep mode.

Active à Standby à Sleep

Wi-Fi DTIM timer is expired and the hardware wakes up to listen

to beacon and then goes to sleep again when It is not necessary

to wake up N9 to process the data.

Sleep à MCU idle (Wi-Fi ON) à

sleep

Wi-Fi DTIM timer is expired and the hardware wakes up to listen

to beacon and then wake up N9 to process the data.

Sleep à MCU idle (Wi-Fi ON) à

Active

The typical scenarios which CM4 operates in and the power state transition are summarized in the

following table.

Table 2-5. Power State Transition Scenarios for CM4

Scenario

Description

State transition

All functions are idle and the CM4 firmware triggers to enter the

sleep mode.

Active à Standby à Sleep

The wake-up event (wake-up event from N9 or other sources)

triggers CM4 to wake up.

Sleep à Standby à Active

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