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Zynq Ult MPSoC SBC Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.2.6
MPSoC System Monitor/ADC
The Zynq Ult MPSoC contain two System Monitor block (SYSMONE4), one in the PL (PL SYSMON) and another
in the PS (PS SYSMON). It is used to enhance the overall safety, security and reliability of the system by monitoring the
physical environment via on-chip power supply and temperature sensors.
The PL SYSMON uses 10-bit 200kSPS ADC to digitize the sensor/ADC inputs. It monitors the die temperature in the PL
and several internal PL and PS power supply nodes. The PL SYSMON can also monitor up to 17 external analog channels
which includes 16 auxiliary analog inputs and one VP_VN dedicated input. The external auxiliary inputs can be routed
through any PL Bank. The ADC voltage reference is selectable between an internal reference and the external pins
VREFP and VREFN. In Zynq Ult MPSoC SBC, 1.25V external voltage reference is supported.
The PS SYSMON uses 10-bit 1MSPS ADC to digitize the sensor inputs. It is located in the PS LPD and monitors two
temperature points & several internal fixed voltage nodes. The PS has two temperature sensors, one is physically
located in the PS SYSMON near the RPU. The second, remote sensor is located in the FPD near the APU. The ADC
always uses an internally generated voltage reference.
2.3
PMIC with RTC
The Zynq Ult MPSoC SBC supports Dialog semiconductor DA9063 PMIC. The I2C0 module of Zynq Ult
MPSoC PS is used for PMIC interface through MIO pins with I2C address 0x5A. PMIC supports Six switching regulator,11
LDO regulator and upto 14 General purpose Input/Output pins.
PMIC’s LDO1 is connected to I/O voltage of PL HP Banks (PL Bank
64) and by default set to 1.2V.The I/O voltage is
configurable through software after bootup.
PMIC’s LDO
6 is connected to I/O voltage of PL HD Bank 43, LDO3 is connected to I/O voltage of PL HD Bank 44, LDO4
is connected to I/O voltage of PL HD Bank 45 & LDO7 is connected to I/O voltage of PL HD Bank 46 and by default set
to 1.2V. The I/O voltage is configurable through software after bootup.
PMIC supports reset output and connected to Zynq Ult MPSoC PS (PS_POR_B) for power on reset. Also PMIC
supports IRQ output for events indication and
connected to MPSoC’s PS GPIO (
PS_MIO2_500).
The PMIC supports Real Time Clock functionality through J6 connector for RTC backup power. The PMIC can support
backup battery charging to charge Lithium-Manganese coin cell batteries and super capacitors if required.
