SWCU192 November 2021 CC1312R7 , CC1352P7 , CC2652P7 , CC2652R7
Figure 14-1 shows a general overview of the IOC.
The IOC module consists of two main submodules:
The always-on peripherals (RTC, Battery Monitor and internal temperature sensor) are clocked from the 32 kHz Low Frequency Clock (SCLK_LF, see Section 8.5 for more details). This allows the device to operate at very low power levels while still maintaining active operation of these peripheral functions. When configured correctly, the AON IOC ensures that output levels of all I/Os remain unchanged when the AUX power domain is powered down .