4.6.3 SPDT RF Switch Registers

The RF front-end registers shown in the following table are used by the SPDT RF switch. They are controlled by firmware during the power-up and power-down of RXMode and PollingMode. Changing these registers by customer application software is not recommended.

Table 4-38. SPDT RF Front-End Registers Used by Firmware

Register

Function

FEEN2.SDRX

Single Pole Double Throw (SPDT) switch RX

FEEN2.SDTX

Single Pole Double Throw (SPDT) switch RX2

FEEN2.XTPEN

XTO Vpump enable (gate control voltage of the switch)

FECR.ANDP

Antenna damping

FESR.LBSAT

Indicates the Low-band LNA saturation

FESR.HBSAT

Indicates the High-band LNA saturation