TE0808 TRM
Revision: v.32
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7
https://wiki.trenz-electronic.de/display/PD/FAQ
8 Power and Power-On Sequence
8.1 Power Consumption
The maximum power consumption of a module mainly depends on the design which is running on the FPGA.
Xilinx provide a power estimator excel sheets to calculate power consumption. It's also possible to evaluate the
power consumption of the developed design with Vivado. See also Trenz Electronic Wiki
.
Power Input Pin
Typical Current
DCDCIN
TBD*
LP_DCDC
TBD*
PL_DCIN
TBD*
PS_BATT
TBD*
Table 15
: Maximum current of power supplies. *to be determined soon with reference design setup.
Power supply with minimum current capability of 3A for system startup is recommended. For the lowest power
consumption and highest efficiency of on board DC/DC regulators it is recommended to powering the module from
one single 3.3V supply. Except 'PS_BATT', all input power supplies have a nominal value of 3.3V. Although the input
power supplies can be powered up in any order, it is recommended to power them up simultaneously.
The TE0808 module equipped with the Xilinx Zynq
Ult MPSoC
delivers a heterogeneous multi-processing
system with integrated programmable logic and independently operable elements and is designed to meet
embedded system power management requirement by advanced power management features. This features allow
to offset the power and heat constraints against overall performance and operational efficiency.
This features allowing highly flexible power management are achieved by establishing Power Domains for power
isolation. The Zynq Ult MPSoC has multiple power domains, whereby each power domain requires its own
particular external DC-DC converters.
The Processing System contains three Power Domains:
•
Battery Power Domain (BBRAM and RTC)
•
Full-Power Domain (Application Processing Unit, DDR Controller, Graphics Processing Unit and High-Speed
Connectivity)
•
Low-Power Domain (Real-Time Processing Unit, Security and Configuration Unit, Platform Management
Unit, System Monitor and General Connectivity)
The fourth Power Domain is for the Programmable Logic (PL). If individual Power Domain control is not required,
power rails can be shared between domains.
On the TE0808-04 SoM, following power domains can be powered up individually with power rails available on the
B2B connectors:
•
Full-power domain, supplied by power rail
DCDCIN
•
Low-power domain, supplied by power rail
LP_DCDC
•
Programmable logic, supplied by power rail
PL_DCIN
•
Battery power domain, supplied by power rail
PS_BATT
