User's Manual
Notethatplacingnojumpersontheblockensuresthatthelineispulledlowusing100‐Kpulldown
resistors.Placingthejumperpullsthepi n highusinga1‐Kresistor.
2.1.8 PushButtonsandLEDs
Table2‐7liststhe push‐buttonsettings
Reference
Usage
Comments
SW1
RESET
This is used to RESET the CC3220MODASX device. This signal is also output on the 20-pin
connector to RESET any external BoosterPack which may be stacked. The Reset can be
isolated using the jumper block located at the center of the board.
SW2
GPIO_13
When pushed, the GPIO_13 will be pulled to VCC.
SW3
GPIO_22
When pushed, the GPIO_22 will be pulled to VCC.
SW4 FACTORY
DEFAULT
Pressing this button and toggling the RESET will restore the factory default image on the serial
flash. This can be used to recover a corrupted serial flash, provided the s-flash was programmed
with a recover
y
ima
g
e.
Table2‐7:PushButtons
Table2‐8liststhe LEDsettings.
Reference
Color
Usage
Comments
D3
Yellow
nRESET
This LED is used to indicate the state of nRESET pin. If this LED is
glowing, the device is functional.
D2, D1
Green, Red
Debug Indicates state of the JTAG emulator. For TI use only.
D8
RED
Power Indicates when the 3.3 V power is supplied to the board.
D7
RGB
GPIO_11
(1)
Glows when the GPIO is logic-1
RGB
GPIO_10
(1)
Glows when the GPIO is logic-1
RGB
GPIO_09 Glows when the GPIO is logic-1
D6 FRST Factory Reset Indicates that the Push-button for the factory Reset is pressed down.
(1)
GPIO_10 and GPIO_11 are used as I2C also. So whenever the pull-ups are enabled, the LEDs would glow by default without
configuring the GPIOs.
Table2‐8:LEDs
2.2 2x20Pinconnectorassignment
Thesignalassignmentonthe2x20‐pinconnectorisshowninTables2‐8thru2‐11.
Note: Allsignalsare3.3VCMOSlogiclevelsandarereferredwithrespecttotheCC3120IC.
Forexample,UART1_TXisanoutputfromtheCC3120IC.
FortheSPIlines,theCC3120MOD
alwaysactslikeaslave
Table2‐8liststhe P1connectorassignment.