Xilinx Zynq UltraScale+ ZCU208 User Manual page 64

Each Infineon PMIC controller is capable of reporting the voltage and current of its controlled rail
to the Infineon GUI for display to the user. Fourteen 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 INA226_PMBUS. The
rails configured with the INA226 power monitors are shown in
As described in I2C0 (MIO
and the INA226 power monitors through the U17 PCA9544A bus switch. All PMBus controlled
Infineon regulators are tied to the IRPS5401_SDA/SCL PMBUS, while the INA226 power
monitors are separated on to INA226_PMBUS.
Figure 7 and Table 10
INA226 power monitor op amps. Also refer to schematic 038-05003-01. Power rail
measurements are accessible to the system controller and RFSoC PL logic through their
respective I2C0 bus connections.
UG1410 (v1.0) July 8, 2020
ZCU208 Board User Guide
14-15), the I2C0 bus provides access to the PMBus power controllers
document the I2C0 bus access path to the Infineon PMBus controllers and
Chapter 3: Board Component Descriptions
Table 25.
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