User manual

Hardware Description

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Table 5. Inner Row Connectors

Pin No Signal Name Direction Pin No Signal Name Direction

P3.1 +5 V IN P4.1 UNUSED OUT

P3.2 GND IN P4.2 UNUSED OUT

P3.3 UNUSED NA P4.3 UNUSED NA

P3.4 UNUSED NA P4.4 UART1_CTS IN

P3.5 UNUSED NA P4.5 UART1_RTS OUT

P3.6 UNUSED NA P4.6 UNUSED NA

P3.7 UNUSED NA P4.7 NWP_LOG_TX OUT

P3.8 UNUSED NA P4.8 WLAN_LOG_TX OUT

P3.9 UNUSED NA P4.9 UNUSED IN

P3.10 UNUSED NA P4.10 UNUSED OUT

NOTE: All signals are 3.3 V CMOS 400mA logic levels and are referred w.r.t. CC3100 IC. For

example, UART1_TX is an output from the CC3100.

For the SPI lines, the CC3100 always acts like a slave.

2.4 Power

The board is designed to accept power from a connected LaunchPad or from the CC3100EMUBOOST

board. Some of the LaunchPads are not capable of sourcing the peak current requirements of Wi-Fi. In

such a case, the USB connector on the CC3100BOOST can be used to aid the peak current. The use of

Schottky diodes ensure that the load sharing happens between the USB connectors on the LaunchPad

and the BoosterPack without any board modifications.

Also the 3.3 V power can be sourced from the LaunchPad or from the 3.3 V LDO on the board. This is

done by using jumper J8. In the case where the LaunchPad is not able to source the 3.3 V up to 350mA,

then the J8 needs to be configured to work from the on-board LDO.

CC3100 SimpleLink™ Wi-Fi

and IoT Solution BoosterPack Hardware SWRU371B–June 2014–Revised January 2015

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