What is I3C®?

In this video, learn about the I3C® protocol, and how it compares to I2C. I3C is a new serial protocol from the MIPI® Alliance that improves upon I2C with higher clock speeds, dynamic addressing, in-band interrupts, and many other new and exciting features!
PIC18-Q20 Family of Microcontrollers: mchp.us/3SixeMG
I3C Specification: mchp.us/3s5VbfO
Timestamps:
00:00 - Welcome
00:10 - Introduction to I3C
00:40 - Bus Speed Comparison
01:28 - Integrated Pull-up Resistors
01:39 - Operating Voltage Range
02:13 - Dynamic Addressing
02:50 - In-Band Interrupts (IBI) and Hot-Join
03:20 - Active Controllers
03:49 - I3C Communication
05:02 - Clock Stretching
05:39 - Common Command Codes (CCC)
06:06 - Commonly Used CCCs
06:34 - High Date Rate (HDR) Modes
07:12 - HDR-TSP / HDR-TSL
07:47 - HDR-DDR
08:04 - HDR-BT
08:34 - HDR Support in I3C
08:49 - Address Arbitration and In-Band Interrupts
09:26 - Arbitration Example
10:50 - Links and Ending

[@Studyelectron]

Design marvel in electronic spheres 👍

[@portblock]

Seam like too much of a squeezing in more features to only have something slightly better. I believe (I could be wrong) I2C was for inter board coms. To me, if my application/design needs more speed then SPI or UART, If I need to go off board then CAN or Ethernet

[@john_hind]

I2C is supposed to be written and pronounced I-squared-C or IIC which stands for Inter-Integrated-Circuit. So it is supposed to be intra-, not inter- board, i.e. between chips on the same board. Not sure if anyone has contrived a rationale for I3C yet though! The address assignment looks like a killer feature since at the moment you have to hope that two ICs will not have the same default addresses or else IC pins have to be reserved for selecting amongst a limited number of alternative addresses.

[@portblock]

@@john_hind Thank you for the correction, i get intra and inter mixed up all the time, but yes, I agree with what you say

[@oPossum5150]

Eye Cubed See

[@MichaelKingsfordGray]

Morphing into CAN bus?

[@0LoneTech]

Pretty much, but primarily pretending SMBus (with e.g. host notify and address resolution) doesn't exist.

[@mariafigueroa8408]

Por.favor en español mo entiendo idioma

[@jensschroder8214]

then I can connect it to the I2C bus, fine

[@axramar7743]

which mcu supports this protocol?✅️

[@MayankPrasad]

I found this link in the description: PIC18-Q20 Family of Microcontrollers: mchp.us/3SixeMG

[@MicrochipTechnology]

Hi there, thanks for reaching out! That would be the PIC18-Q20 Product Family, as Max noted previously. These MCUs are equipped with I3C® modules. The link he sent is perfect: www.microchip.com/en-us/products/microcontrollers-and-microprocessors/8-bit-mcus/pic-mcus/pic18-q20

[@Rob_III]

This sounds an awful lot as a solution looking for a problem? If I²C doesn't cut it, I'd go for CAN, USB or Ethernet... I'm having a hard time placing I³C in this picture, especially when device support is pretty non-existent at the moment and established alternatives are available aplenty.

[@pete3897]

So I2C is written I2C but prounounced Eye Squared See, whereas I3C is written I3C and pronounced Eye Three See not Eye Cubed See?! Totally makey sensey