CC3220MOD_017 Datasheet, PDF (63/100 Pages) Texas Instruments – SimpleLink Wi-Fi CERTIFIED Wireless MCU Modules

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CC3220MOD, CC3220MODA
SWRS206B – MARCH 2017 – REVISED AUGUST 2017
The NWP can be active or in LPDS mode and takes care of its own mode transitions. When there is no
network activity, the NWP sleeps most of the time and wakes up only for beacon reception (see
Table 6-3).
Table 6-3. Networking Subsystem Modes
NETWORK PROCESSOR MODE
Network active mode
(processing layer 3, 2, and 1)
Network active mode
(processing layer 2 and 1)
Network active listen mode
Network connected Idle
Network LPDS mode
Network disabled
DESCRIPTION
Transmitting or receiving IP protocol packets
Transmitting or receiving MAC management frames; IP processing not required.
Special power optimized active mode for receiving beacon frames (no other frames supported)
A composite mode that implements 802.11 infrastructure power save operation. The CC3220MODx
and CC3220MODAx NWPs automatically goes into LPDS mode between beacons and then wakes
to active listen mode to receive a beacon and determine if there is pending traffic at the AP. If not,
the NWP returns to LPDS mode and the cycle repeats.
Low-power state between beacons in which the state is retained by the NWP, allowing for a rapid
wake up.
The network is disabled
The operation of the application and network processor ensures that the module remains in the lowest
power mode most of the time to preserve battery life.
The following examples show the use of the power modes in applications:
• A product that is continuously connected to the network in the 802.11 infrastructure power-save mode
but sends and receives little data spends most of the time in connected idle, which is a composite of
receiving a beacon frame and waiting for the next beacon.
• A product that is not continuously connected to the network but instead wakes up periodically (for
example, every 10 minutes) to send data, spends most of the time in hibernate mode, jumping briefly
to active mode to transmit data.
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Detailed Description
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