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NXP Tech Blog

EsaHuang
NXP Employee
NXP Employee

On i.MX95, OD, ND, and LD represent different system operating modes used to balance performance and power consumption. OD (OverDrive) mode targets the highest performance, allowing higher clock frequencies with a higher SoC supply voltage. ND (Nominal Drive) mode provides the standard operating point for normal performance and power efficiency. LD (Low Drive) mode is intended for lower-power operation, reducing voltage and limiting clock frequencies to save energy. In practice, switching between these modes involves coordinated changes of VDD_SOC, system clocks, and DDR operating frequency so that the device can move between high-performance and low-power states safely and efficiently.

 

Here is a table about the Maximum frequency of modules of different modes.

 

OverDrive Mode

Nominal Mode

LowDrive Mode

VDD_SOC (typical)

0.9 V

0.85 V

0.8 V

VDD_ARM (typical)

0.9 V

0.85 V

0.8 V

A55 frequency

1800 MHz

1400 MHz

900 MHz

NPU frequency

1000 MHz

800 MHz

500 MHz

ISI frequency

667 MHz

500 MHz

333 MHz

GPU frequency

500 MHz

500 MHz

500 MHz

Display frequency

800 MHz

666 MHz

400 MHz

VPU frequency

666 MHz

500 MHz

333 MHz

 

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araki
NXP Employee
NXP Employee

車載BMSの新しい技術として、近年、EIS(Electrochemical Impedance Spectroscopy:電気化学インピーダンス分光法)が注目されています。
EISが注目されている背景や採用するメリット、またNXPのソリューション(プレスリリース)を簡単に紹介します。
現状BMSを扱っているが、今後どのような方向性で精度や機能を改善していけばよいのか悩まれている方のヒントになれば幸いです。

(読了:15分)

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