CC3000MOD Datasheet, PDF (9/16 Pages) Texas Instruments – TI SimpleLink CC3000 Module . Wi-Fi 802.11b/g Network Processor

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POWER-UP SEQUENCE
Figure 5 demonstrates the wake-up sequence of the CC3000 module.
VBAT_IN
VIO_HOST
VBAT_SW_EN
SPI_IRQ
CC3000MOD
SWRS126 – NOVEMBER 2012
SPI_CS
T0
T1
T2
Figure 5. CC3000 Module Power-On Sequences
SWRS126-005
NOTE
• VBAT_IN and VIO_HOST must be available before VBAT_SW_EN is asserted.
• At wake-up time (T1): The CC3000 module powers up after SPI_IRQ changes state to
LOW. T1 is approximately 53 ms.
• At T2: The normal master SPI write sequence is SPI_CS low, followed by SPI_IRQ low
(CC3000 host), indicating that the CC3000 core module is ready to accept data. T2
duration is approximately 7 ms.
CC3000 Enable Pins Configuration
Table 5 describes the CC3000 mode of operation based on the enable (EN) pins setting.
Mode
Test mode⁽¹⁾
Functional mode⁽²⁾
(1) For CC3000 radio tool operation
(2) For normal operation
Table 5. CC3000 EN Pins Configuration
State
WL_EN1: Leave disconnected.
WL_EN2: Connect to ground.
WL_EN1 and WL_EN2 are shorted together.
Copyright © 2012, Texas Instruments Incorporated
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