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
| ACK: | Short for “acknowledge” (an I3C Bus operation) |
| 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. |
| 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: | Slaves 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 Slave to notify the Master that it is ready to get a Dynamic Address. |
| In-Band Interrupt (IBI): | A method whereby a Slave Device emits its Address into the arbitrated Address header on the I3C Bus to notify the Master of an interrupt. |
| Main Master: | Master that has initial control of the I3C Bus. |
| Master: | The I3C Bus Device that is controlling the Bus. |
| Slave: | An I3C Slave Device can only respond to either Common or individual commands from a Master. A Slave Device cannot generate a clock. |
Abbreviations
| DisCo | Discovery and Configuration (family of MIPI Alliance interface Specifications) |
| e.g. | For example (Latin: exempli gratia) |
| i.e. | That is (Latin: id est) |
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]) |
| HDR | High Data Rate (a set of I3C Bus Modes) |
| HDR-DDR | HDR Double Data Rate (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) |
| 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., In press. |
| [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 v1.0, CTS version 1.0, MIPI Alliance, Inc., In press. |
| [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 26 February 2020. |
| [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., In press. |