CC3200 datasheet(52/71 Pages) TI

52 / 71 page

CC3200

SWAS032F – JULY 2013 – REVISED FEBRUARY 2015

www.ti.com

NOTE

Table 5-2 lists the modes by power consumption, with highest power modes listed first.

Table 5-2. User Program Modes

Application Processor (MCU)

Description

Mode

MCU active mode

MCU executing code at 80-MHz state rate

MCU sleep mode

The MCU clocks are gated off in sleep mode and the entire state of the device is retained. Sleep mode

offers instant wakeup. The MCU can be configured to wake up by an internal fast timer or by activity

from any GPIO line or peripheral.

MCU LPDS mode

State information is lost and only certain MCU-specific register configurations are retained. The MCU

can wake up from external events or by using an internal timer. (The wake-up time is less than 3 ms.)

Certain parts of memory can be retained while the MCU is in LPDS mode. The amount of memory

retained is configurable. Users can choose to preserve code and the MCU-specific setting. The MCU

can be configured to wake up using the RTC timer or by an external event on specific GPIOs defined in

Table 3-1 as the wake-up source.

MCU hibernate mode

The lowest power mode in which all digital logic is power-gated. Only a small section of the logic directly

supports wakeup from an external event or from an RTC timer expiry. Wake-up time is longer than

LPDS mode at about 15 ms plus the time to load the application from serial flash, which varies

according to code size. In this mode, the MCU can be configured to wake up using the RTC timer or

external event on a GPIO (GPIO0–GPIO6).

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.

Table 5-3. Networking Subsystem Modes

Network Processor Mode

Description

Network active mode processing

Transmitting or receiving IP protocol packets

layer 3, 2, and 1

Network active mode (processing Transmitting or receiving MAC management frames; IP processing not required.

layer 2 and 1)

Network active listen mode

Special power optimized active mode for receiving beacon frames (no other frames supported)

Network connected Idle

A composite mode that implements 802.11 infrastructure power save operation. The CC3200R network

processor 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 access point. If not, the network

processor returns to LPDS mode and the cycle repeats.

Network LPDS mode

Low-power state between beacons in which the state is retained by the network processor, allowing for

a rapid wake up.

Network disabled

The operation of the application and network processor ensures that the device remains in the lowest

power mode most of the time to preserve battery life. Table 5-4 summarizes the important CC3200 chip-

level power modes.

Table 5-4. Important Chip-Level Power Modes

Power States for

Network Processor Active Mode

Network Processor LPDS Mode

Network Processor

Applications MCU

(Transmit, Receive, or Listen)

Disabled

and Network

Processor

MCU active mode

Chip = active (C)

Chip = active

MCU LPDS mode

Chip = active (A)

Chip = LPDS (B)

Chip = LPDS

MCU hibernate mode

Not supported because chip is hibernated by Not supported because chip is hibernated by Chip = hibernate (D)

MCU; thus, network processor cannot be in

active mode

LPDS mode

Detailed Description

Submit Documentation Feedback

Product Folder Links: CC3200

CC3200 Datasheet(PDF) 52 Page - Texas Instruments

CC3200 Datasheet(HTML) 52 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

Datasheet Download

Link URL