I3C Additional Information

MIPI

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Click here to view a PDF of all MIPI I3C FAQs.

Terminology

See also Section 2 in the MIPI I3C Specification [MIPI01][MIPI10][MIPI12].

Definitions

Bus Available:	I3C Bus condition in which a Device is able to initiate a transaction on the Bus.
Bus Free:	I3C Bus condition after a STOP and before a START with a duration of at least tCAS.
Bus Idle:	An extended duration of the Bus Free condition in which Devices may attempt to Hot-Join the I3C Bus.
Controller:	The I3C Bus Device that is controlling the Bus. (I3C and I3C Basic versions prior to v1.1.1 used the deprecated term Master.)
High-Keeper:	A weak Pull-Up type Device used when SDA, and sometimes SCL, is in High-Z with respect to all Devices.
Hot-Join:	Targets that join the I3C Bus after it is already started, whether because they were not powered previously or because they were physically inserted into the Bus. The Hot-Join mechanism allows the Target to notify the Controller that it is ready to get a Dynamic Address.
In-Band Interrupt (IBI):	A method whereby a Target Device emits its Address into the arbitrated Address header on the I3C Bus to notify the Controller of an interrupt.
Master:	Deprecated term used in I3C and I3C Basic versions prior to v1.1.1. See Controller.
Target:	An I3C Target Device can only respond to either Common or individual commands from a Controller. (I3C and I3C Basic versions prior to v1.1.1 used the deprecated term Slave.)

Acronyms

See also the acronyms defined in the MIPI I3C Specification [MIPI01][MIPI10][MIPI12].

CCC	Common Command Code (an I3C common command or its unique code number)
CTS	Conformance Test Suite
DAA	Dynamic Address Assignment (an I3C Bus operation)
FAQ	Frequently Asked Questions
HCI	Host Controller Interface (a MIPI Alliance interface specification [MIPI02] [MIPI13])
HDR	High Data Rate (a set of I3C Bus Modes)
HDR-BT	HDR Bulk Transfer (an I3C Bus Mode)
HDR-DDR	HDR Double Data Rate (an I3C Bus Mode)
HDR-TSL	HDR Ternary Symbol Legacy (an I3C Bus Mode)
HDR-TSP	HDR Ternary Symbol for Pure Bus (an I3C Bus Mode)
I3C	Improved Inter Integrated Circuit (a MIPI Alliance interface Specification [MIPI01][MIPI10][MIPI12])
IBI	In-Band Interrupt (an I3C Bus feature)
ML	Multi-Lane (an I3C Bus feature, and set of Data Transfer Codings for I3C Bus Modes)
ODR	Output Data Rate
SCL	Serial Clock (an I3C Bus line)
SDA	Serial Data (an I3C Bus line)
SDR	Single Data Rate (an I3C Bus Mode)
SPI	Serial Peripheral Interface (an interface specification)

References

[MIPI01]	MIPI Alliance Specification for I3C® (Improved Inter Integrated Circuit), version 1.0, MIPI Alliance, Inc., 23 December 2016 (Adopted 31 December 2016).
[MIPI02]	MIPI Alliance Specification for I3C Host Controller Interface (I3C HCISM), version 1.0, MIPI Alliance, Inc., 29 September 2017 (Adopted 4 April 2018).
[MIPI03]	MIPI Alliance Specification for Discovery and Configuration (DisCoSM), version 1.0, MIPI Alliance, Inc., 1 July 2016 (Adopted 28 December 2016).
[MIPI04]	MIPI Alliance DisCoSM Specification for I3CSM, version 1.0, MIPI Alliance, Inc., 25 January 2019 (Adopted 18 June 2019).
[MIPI05]	MIPI Alliance System Integrators Application Note for I3C® v1.0 and I3C Basic SM v1.0, App Note version 1.0, MIPI Alliance, Inc., 8 December 2018 (approved 8 December 2018).
[MIPI06]	MIPI Alliance Specification for Camera Serial Interface 2 (CSI-2SM), version 4.0, MIPI Alliance, Inc., In press.
[MIPI07]	MIPI Alliance Specification for Debug for I3CSM, version 1.0, MIPI Alliance, Inc., 21 April 2020 (Adopted 4 September 2020).
[MIPI08]	MIPI Alliance Specification for Virtual GPIO Interface (VGISM), version 1.0, MIPI Alliance, Inc., In press.
[MIPI09]	MIPI Alliance Conformance Test Suite (CTS) for I3CSM v1.1.1 and I3C Basic v1.1.1, CTS version 1.0, MIPI Alliance, Inc., 4 August 2021 (approved 5 August 2021).
[MIPI10]	MIPI Alliance Specification for I3C BasicSM (Improved Inter Integrated Circuit), version 1.0, MIPI Alliance, Inc., 19 July 2018 (Adopted 8 October 2018).
[MIPI11]	MIPI Alliance, Inc., “I3C SETBUSCON Table”, https://www.mipi.org/MIPI_I3C_bus_context_byte_values_public.html, last accessed 4 September 2021.
[MIPI12]	MIPI Alliance Specification for I3C® (Improved Inter Integrated Circuit), version 1.1, MIPI Alliance, Inc., 27 November 2019 (Adopted 11 December 2019).
[MIPI13]	MIPI Alliance Specification for I3C Host Controller Interface (I3C HCISM), version 1.1, MIPI Alliance, Inc., 20 May 2021 (Adopted 20 May 2021).
[MIPI14]	MIPI Alliance Specification for I3C® (Improved Inter Integrated Circuit), version 1.1.1, MIPI Alliance, Inc., 11 June 2021 (Adopted 8 June 2021).
[MIPI15]	MIPI Alliance Specification for I3C BasicSM (Improved Inter Integrated Circuit), version 1.1.1, MIPI Alliance, Inc., 9 June 2021 (Adopted 21 July2021). Note: Version number v1.1 was not used for I3C Basic.
[MIPI16]	MIPI Alliance Specification for Debug for I3CSM, version 1.1, MIPI Alliance, Inc., In press.
[LINX01]	Linux Kernel Patches for I3C subsystem, https://patchwork.kernel.org/project/linux-i3c/list/, last accessed 4 September 2021