SWRS046I November 2006 – September 2018 CC1020
PRODUCTION DATA.
In transmit mode, DIO is used as data input. The data is modulated at RF without synchronization or encoding.
In receive mode, the raw data signal from the demodulator is sent to the output (DIO). No synchronization or decoding of the signal is done in the CC1020 device and should be done by the interfacing circuit.
If SEP_DI_DO = 0 in the INTERFACE register, the DIO pin is the data output in receive mode and data input in transmit mode. The DCLK pin is not active and can be set to a high or low level by DATA_FORMAT[0].
If SEP_DI_DO = 1 in the INTERFACE register, the DCLK pin is the data output in receive mode and the DIO pin is the data input in transmit mode. In TX mode the DCLK pin is not active and can be set to a high or low level by DATA_FORMAT[0]. See Figure 5-7.