CC3120MOD Datasheet, PDF (20/52 Pages) Texas Instruments – SimpleLink Wi-Fi CERTIFIED Network Processor Internet-of-Things Module Solution for MCU Applications

CC3120MOD
SWRS205 – MARCH 2017
5.13.2 Wakeup From HIBERNATE Mode Timing
Figure 5-7 shows the timing diagram for wakeup from HIBERNATE mode.
VBAT
nRESET
nHIB
T_{hib_min}
T_{wake_from_hib}
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ACTIVE
HIBERNATE
HW WAKEUP+FW INIT
ACTIVE
HIBERNATE
32-kHz
XTAL/CXO
Figure 5-7. nHIB Timing Diagram
NOTE
The internal 32.768-kHz XTAL is kept enabled by default when the chip goes into
HIBERNATE mode in response to nHIB being pulled low.
Table 5-3 describes the timing requirements for nHIB.
Table 5-3. nHIB Timing Requirements
ITEM
T_{hib_min}
T_{wake_from_hib}
NAME
Minimum hibernate time
Hardware wakeup time plus
firmware initialization time
DESCRIPTION
Minimum pulse width of nHIB being low⁽¹⁾
See ⁽²⁾
MIN TYP MAX UNIT
10
ms
50
ms
(1) If temperature changes by more than 20°C, initialization time from HIB can increase by 200 ms due to radio calibration.
(2) Ensure that the nHIB pulse width is kept above the minimum requirement under all conditions (such as power up, MCU reset, and so
on).
5.13.3 Interfaces
This section describes the interfaces that are supported by the CC3120MOD module:
• Host SPI
• Flash SPI
20
Specifications
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