SWCU192 November 2021 CC1312R7 , CC1352P7 , CC2652P7 , CC2652R7
The RAT module has four controllable outputs, RAT_GPO0 through RAT_GPO3. These signals may be controlled by one of the RAT channels and mapped to signals available for the IOC using the SYSGPOCTL register (see Section 26.11.2). The signal RAT_GPO0 is reserved for starting the transmitter and is controlled internally by the radio CPU (see Section 26.3.2.8). The other three signals may be configured using the CMD_SET_RAT_OUTPUT command (see Section 26.3.3.2.11). The different output modes indicate the transition of the output when an interrupt occurs on the chosen RAT channel except for the always-0 and always-1 configurations, which take effect immediately and may be used for initialization.