Re: [RFC 2/5] i3c: Add core I3C infrastructure

Wolfram Sang
2017-07-31T19:17:21Z

[-- Attachment #1: Type: text/plain, Size: 945 bytes --]

> +This document is just a brief introduction to the I3C protocol and the concepts
> +it brings on the table. If you need more information, please refer to the MIPI
> +I3C specification.

I wish I could.

> +
> +Introduction
> +============
> +
> +The I3C (I-Cube-C) is a MIPI standardized protocol designed to overcome I2C

"Eye-three-See", according to:
http://eecatalog.com/sensors/2017/07/05/after-35-years-of-i2c-i3c-improves-capability-and-performance/

> +Backward compatibility with I2C devices
> +=======================================
> +
> +The I3C protocol has been designed to be backward compatible with I2C devices.
> +This backward compatibility allows one to connect a mix of I2C and I3C devices
> +on the same bus, though, in order to be really efficient, I2C devices should
> +be equipped with 50 ns spike filters.

I just found a slide which says I3C does not support clock stretching.
That should be mentioned here, too.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]