I3C standard information, sharing

damiaa

I3C standard information, sharing [Copy link]

I3C Standard

dcexpert talked about i3C, and I just found a document on the I3C standard. Share it with me.

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As mobile devices such as mobile phones contain more and more sensors, the limitations of the traditional I2C/SPI interface in sensors are becoming more and more obvious. Typical defects are as follows:

1. The increase of sensors and other devices has put forward more stringent requirements on the speed and power consumption of the control bus;

2. Although I2C is a 2-wire interface, such devices often require an additional interrupt INT signal line;

In order to solve the above problems, the I3C interface bus and protocol were introduced. Let's take a look at the characteristics of the I3C bus.

Features

1. It is also a 2-wire interface and is backward compatible with I2C.

2. I3C bus can support multi-master, i.e. multi-master devices

3. The I3C bus is still compatible with traditional I2C devices

4. Support soft interrupt

5. Lower power consumption compared to I2C bus

6. Faster speed, can support up to 12.5MHZ

I3C标准.docx (1.56 MB, downloads: 13)

2021-7-20 09:50 上传

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w494143467

This is the first time I heard of I3C. However, it came out a few years ago and is not yet popular. It should be because there are not many application scenarios.

se7ens

First time hearing about it, let's see what it is first

Martin_chen6

Let's see what it is first.