Voltage and current monitoring and control are available for the Maxim power system controllers via the Maxim PowerTool software graphical user interface. The onboard Maxim PMBus MAX15301, MAX15303, and MAX20751 power controllers listed in Table: Onboard Power System Devices are accessed through the 2x4 PMBus connector J11, which is provided for use with the Maxim PowerTool USB cable (Maxim part number MAXPOWERTOOL001#). This cable can be ordered from the Maxim Integrated website [Ref 16]. The associated Maxim PowerTool GUI can be downloaded from the Maxim website. This is the simplest and most convenient way to monitor the voltage and current values for the PMBus power rails listed in Table: Onboard Power System Devices.
VCCINT, VCCAUX, and VCCBRAM rail voltages can also be displayed via the SYSMON internal voltage measurement capability.