The sensor channels {7:10} are routed through four multiplexers controlled by the PSSYSMON.ANALOG_BUS register. The sensor channels connect to the following voltage nodes.
•VCCO_PSIO1
•VCCO_PSIO2
•PS_MGTRAVCC
•PS_MGTRAVTT
The recommended value of the ANALOG_BUS register is 3210h; this value is assumed for the definition of these sensor channels in Table: PS SYSMON Sensor Channels and in other places. The register is programmed to 3201h by the PMU ROM pre-boot code and should be reprogrammed by the FSBL or other software code.
Note: Once the value is reprogrammed by the FSBL it should be changed.
RECOMMENDED: The ANALOG_BUS register should be set to 3210h in the FSBL code. If the recommended value is not used, the sensor channels {7:10} are remapped and might not be compatible with the system software.
The functionality of the ANALOG_BUS register is illustrated in This Figure.
