Datasheet
Table Of Contents
- General Description
- Key Features
- Applications
- System Diagram
- Contents
- Figures
- Tables
- 1 Terms and Definitions
- 2 References
- 3 Block Diagram
- 4 Pinout
- 5 Electrical Specification
- 6 Power Management
- 7 Core System
- 8 Peripherals
- 9 Applications Schematic
- 10 Package Information
- 11 Ordering Information
- Revision History
DA16200MOD
Ultra Low Power Wi-Fi Module
Datasheet
Revision 3.1
03-Feb-2021
CFR0011-120-00
21 of 60
© 2021 Dialog Semiconductor
6.2.2 Sleep Mode 2
Sleep mode 2 is an operational mode in which the RTC_PWR_KEY is set to high and the RTC block
is running. Sleep mode 2 is activated by setting RTC registers for controlling the power management
unit via a command from the CPU.
To switch Sleep mode 2 back to Sleep mode 1, RTC_PWR_KEY should be set to low.
Changing the state of the device from Sleep mode 2 to an ACTIVE state happens in one of two
ways:
1. The counter value that has been set by the CPU prior to entering Sleep mode 2 is reached.
2. An external wake-up event occurs via the RTC_WAKE_UP pin.
6.2.3 Sleep Mode 3
Sleep Mode 3 is a low power, but fully connected Wi-Fi mode of operation. Sleep Mode 3 checks for
incoming Wi-Fi network data traffic at regular intervals set by the user, for example, every one
second, three seconds, five seconds, and so on. The exact time interval is programmable.
Sleep Mode 3 is activated by software commands. See the SDK documentation for more information.
A device can come out of Sleep Mode 3 and into a fully ACTIVE state before the next targeted
wakeup time interval via a GPIO wakeup.