Low Power

Overview

The Genio 720/520-EVK boards are official evaluation kits provided by MediaTek. The Genio 420-EVB is an internal development board. The provided low power data may vary due to hardware differences and has a tolerance of 10% error. These data are for reference only.

Measurement Settings

• Software Version : v25.1.1

• Operating Voltage : 4.2 V

• Power Source : J513 (+) , J512 (-)

Hardware Preparation (Component Removal)

• System LEDs : R3821, R3818, R3819

• System Power : R2046, R1206

Power Consumption of Genio 720/520-EVK and Genio 420-EVB

The following is the power consumption data of Suspend and Idle, and we will provide the measurement SOP.

Table 1. Low Power Data of G720-EVK

	Current (mA)	Power (mW)
Suspend	46.85	196.77
Suspend (Disable Ethernet)	13.36	56.11
Idle (cluster-off state)	141.57	594.59

Table 2. Low Power Data of G520-EVK

	Current (mA)	Power (mW)
Suspend	45.12	189.5
Suspend (Disable Ethernet)	13.17	55.31
Idle (cluster-off state)	139.91	587.62

Table 2. Low Power Data of G420-EVB

	Current (mA)	Power (mW)
Suspend	42.82	179.84
Suspend (Disable Ethernet)	13.05	54.81
Idle (cluster-off state)	140.32	589.34

Suspend

• Step 1 : Power on DUT

• Step 2 : Wait for the system to initialize, about 1-2 minutes

• Step 3 : Set the system to suspend mode.

  echo mem > /sys/power/state
  

• Step 4 : The console cannot input commands, which means it enters suspend

• Step 5 : Wait for 1 minute and start measuring

Note : To disable Ethernet, you can set the Ethernet status to ‘disabled’ in the kernel and U-Boot DTS files.

Idle

• Step 1 : Power on DUT

• Step 2 : Wait for the system to initialize, about 1-2 minutes

• Step 3 : Turn off some extra services

  systemctl stop NetworkManager.service
  echo off > /sys/class/drm/card0-DSI-1/status
  

• Step 4 : Wait for 1 minute and start measuring