Kontron SMARC-sAT30 Manual do Utilizador descarregar pdf (Página 48)

User’s Guide

www.kontron.com

3.5.5

Power Consumption

Power figures are given in the table below for the Module power consumption in various situations. These are Module

power figures. Off-Module power consumption (e.g. display backlight, display power, Carrier board devices) is not

included here. What is included in these power figures: everything on the Module – the Tegra SoC, the DDR3L DRAM,

the eMMC memory, the Module SPI, the Module power supplies, the Module LVDS transmitter, the GBE controller and

miscellaneous Module circuits. The figures below given below are subject to change.

State / Activity

CPU Freq

Module

Power

USB

Enabled?

PCIe + GBE

Enabled?

SATA

Enabled?

Notes

Active state

(Linux Desktop)

1.2 GHz QC

1.6W

Yes

Active state

MPEG4 decode

1.2 GHz QC

5.5W

Yes

Active state

Stress Test

1.2 GHz QC

7.0W

Yes

All 4 cores @

100% load

Active State

MPEG4 decode

1.2 GHz QC

4.0W

Yes

Active State

MPEG4 decode

1.2 GHz QC

3.0W

Yes

“Power Save” mode

enabled

Sleep State

LP1

585mW

Yes

Deep Sleep

State

LP0

310mW

Yes

Sleep State

LP1

535mW

Yes

Deep Sleep

State

LP0

280mW

Yes

There are many options, configurable in software. And there are trade-offs: for example, the “Power Save” option does

save power and the response to events such as keyboard and mouse activity can be sluggish. Evaluation units are

available from Kontron to allow users to check out some of these tradeoffs.

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