Monitoring Voltage And Current - Xilinx ZCU106 User Manual

Monitoring Voltage and Current

Voltage and current monitoring and control are available for the Maxim power system
controllers through the Maxim PowerTool graphical user interface. The on-board Maxim
InTune power controllers listed in
PMBus connector J84, which is provided for use with the Maxim PowerTool USB cable
(Maxim part number MAXPOWERTOOL001#). This cable can be ordered from the Maxim
website [Ref 22]. 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 Maxim PMBus programmed power rails listed in
Each PMBus programmable Maxim controller can report the voltage and current of its
controlled rail to the Maxim GUI. A subset of the programmable rails and two fixed rails
have a TI INA226 PMBus power monitor circuit with connections to the rail series current
sense resistor. This arrangement permits the INA226 to report the sensed parameters
separately on the PMBus. The rails configured with the INA226 power monitors are shown
in Table 3-54.
As described in
power controllers and the PS-side and PL-side INA226 power monitors via the U60
PCA9544A bus switch. All PMBus controlled Maxim regulators are tied to the
MAXIM_PMBUS, while the INA226 power monitors are separated to PS_PMBUS and
PL_PMBUS.
Figure 3-17, page 61
Maxim PMBus controllers and INA226 power monitor op amps. Also, see schematic
0381770. The MPSoC core related power rail measurements (PL_PMBUS) and PS related
power measurements (PS_PMBUS) are accessible to the system controller and MPSoC PL
logic through their respective I2C0 bus connections.
These measurements are displayed in the system controller menu selections. The Maxim
controller PMBus is accessible by the system controller, which can also display the rail
voltage measurement made by its sourcing Maxim controller. User IP in the MPSoC PL can
access the same set of PMBus resident devices through the logic I2C0 connections.
ZCU106 Board User Guide
UG1244 (v1.0) March 28, 2018
Table 3-54
I2C0 (MIO 14-15), page
and Table 3-21, page 63
www.xilinx.com
Chapter 3: Board Component Descriptions
are accessed through the 2x8 keyed shrouded
60, the I2C0 bus provides access to the PMBus
document the I2C0 bus access path to the
Table 3-54.
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