MIPI DevCon Bangalore 2017: Building Intelligent, High-Speed Sensor Connectivity with MIPI I3C: Design Examples
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The document presents an overview of MIPI I3C technology, highlighting its operation as a two-wire serial interface that supports both high-speed data transfer and legacy I2C compatibility. It discusses various use cases in automotive, mobile, IoT, and debugging applications, emphasizing its role in sensor connectivity and data communication. The document also mentions the availability of supporting IP and FPGA prototypes, indicating that the I3C ecosystem is ready for adoption in multiple industries.
MIPI DevCon Bangalore 2017: Building Intelligent, High-Speed Sensor Connectivity with MIPI I3C: Design Examples
- 1. Sriram Balasubramanian, Director, IP Engineering Synopsys Building Intelligent, High-Speed Sensor Connectivity with MIPI I3C℠ – Design Examples
- 2. © 2017 MIPI Alliance, Inc. Agenda • MIPI I3C overview • MIPI I3C use cases • MIPI I3C eco-system: enablers 2 Synopsys
- 3. © 2017 MIPI Alliance, Inc. I3C Overview 3 Synopsys I/Os reduced to just two!! • Two wire serial interface up to 12.5 MHz • Only current master can drive SCL • Supports legacy I2C slave devices and messages. – FM(+): Fast mode (Plus) • I3C Single Data Rate (SDR) Mode • I3C High Data Rate (HDR) Modes – DDR: Dual Data Rate – TSL: Ternary Symbol Legacy – TSP: Ternary Symbol Pure
- 5. © 2017 MIPI Alliance, Inc. I3C Use cases • Automotive • Mobile • IoT • Touch • Debug Ports 5 Synopsys
- 6. © 2017 MIPI Alliance, Inc. Hub Host processor SDA SoC bus CPU DesignWare® MIPI I3C IP (main master) Memory C C DesignWare MIPI I3C IP (secondary master) C SDA C C C Sensor 1 Sensor N Sensor 1_1 Sensor 1_N SCL SCL DesignWare MIPI I3C IP DesignWare MIPI I3C IP DesignWare MIPI I3C IP DesignWare MIPI I3C IP I3C Use Cases : Automotive Sensor Hub • Secondary master, apart from the main master connected to multiple sensors as an I3C hub • As soon as the secondary master has the relevant sensor data available in its I3C bus, it can communicate to the main master, which propagates the data to the CPU Synopsys 6
- 7. © 2017 MIPI Alliance, Inc. I3C Use Cases: Mobile (1/2): Sensor Subsystem Sensor Subsystem • Multiple sensor devices, based on their capabilities, are connected to the I3C bus, which can operate in different modes and speeds of operations • Typical examples of such sensors are the touchpad sensor in a mobile device, gyroscopes, and camera interface, all of which use the I3C bus to communicate back to the CPU in the SoC Synopsys Host processor SDA SoC bus CPU DesignWare MIPI I3C IP Memory C C Sensor 1 Sensor 2 SCL DesignWare MIPI I3C IP DesignWare MIPI I3C IP 7
- 8. © 2017 MIPI Alliance, Inc. I3C Use Cases: Mobile (2/2): Image Sensors Image Sensors • Replace I2C with the side band control channel - the Camera Control Interface (CCI) • Image sensors can utilize I3C’s higher performance capability to communicate control information and to actually transmit image data 8 Synopsys Primary camera module Secondary camera module Host processor/ISP Pixels SDA SCL PixelsImage sensor Image sensor Lens actuators/ controllers DesignWare MIPI I3C IP DesignWare MIPI I3C IP DesignWare MIPI I3C IP
- 9. © 2017 MIPI Alliance, Inc. I3C Use Cases: IoT: Weather Telemetry • IoT enables other sensor applications such as: – Auto sensing – Access control – Image recognition 9 Synopsys IOT System Data collection Process (Background) Data Usage / Display Process (Foreground) I3C I3C Sensor Monitors Temperature Pressure Humidity Display Cloud storage Other similar systems that use Cloud data
- 12. © 2017 MIPI Alliance, Inc. Interested in I3C? Eco System is Ready! • IP, VIP solutions are available • FPGA-based prototypes available for HW validation & early SW development • Multiple Interoperability events • Already being adopted in mobile APs, drone, IoT , sensors, etc. I2C SPI I3C “lite” I3C Smooth transition path from I2C/SPI to I3C SDR mode IBI w/o payload Up to HDR ternary modes IBI with payload Timing control - time stamp 12