SNLU226B February   2018  – April 2021 DS90UB960-Q1

 

  1. 1 Introduction
  2. 2 Features
  3. 3 Application Diagram
  4. 4 Major Components
  5. 5 Quick Start Guide
  6. 6 Board Connections
    1. 6.1 Power Supply
    2. 6.2 Power Over Coax Interface
    3. 6.3 MIPI CSI-2 Output Signals
    4. 6.4 FPD-Link III Signals
    5. 6.5 I2C Interface
    6. 6.6 Control Interface
  7. 7 Enable and Reset
  8. 8 ALP Software Setup
    1. 8.1  System Requirements
    2. 8.2  Download Contents
    3. 8.3  Installation of the ALP Software
    4. 8.4  Startup - Software Description
    5. 8.5  Information Tab
    6. 8.6  Registers Tab
    7. 8.7  Registers Tab - Address 0x00 Selected
    8. 8.8  Registers Tab - Address 0x00 Expanded
    9. 8.9  Scripting Tab
    10. 8.10 Sample ALP Python Script
      1. 8.10.1 Initialization
  9. 9 Troubleshooting ALP Software
    1. 9.1 ALP Loads the Incorrect Profile
    2. 9.2 ALP does not detect the EVM
  10. 10Typical Connection and Test Equipment
  11. 11Termination Device
  12. 12Typical Test Setup
  13. 13Equipment References
  14. 14Cable References
  15. 15Bill of Materials
  16. 16PCB Schematics
  17. 17Board Layout
  18. 18Revision History

6.5 I2C Interface

A standalone external I2C host can connect throughJ9, J10 for programming purposes. Examples of external I2C host controllers are Texas Instruments USB2ANY and Total Phase Aardvark I2C/SPI host adapter (Total Phase Part#: TP240141).

Optional access to I2C signals are also available throughCSI-2 connectors J1, J2, or J3. I2C signal levels can be configured through J30 to be at 1.8V or 3.3V when the I2C interface is accessed through connectors J4, J5.

Table 6-8 IDx I2C Device Address Select - J34
ReferenceSignalDescription
J7IDXSelects I2C Device Address
Open: 0x30 (7'b) or 0x60 (8'b)
Short: 0x3D (7'b) or 0x7A (8'b) (Default)
Table 6-9 Primary I2C Interface Header - J4
ReferenceSignalDescription
J9.1VDD_I2CExternal I2C bus voltage
J9.2I2C_SCLI2C Clock Interface for primary I2C bus
J9.3I2C_SDAI2C Data Interface for primary I2C bus
J9.4GNDGround
Table 6-10 Secondary I2C Interface Header - J5
ReferenceSignalDescription
J10.1VDD_I2CExternal I2C bus voltage
J10.2I2C_SCL2I2C Clock Interface for secondary I2C bus
J10.3I2C_SDA2I2C Data Interface for secondary I2C bus
J10.4GNDGround
Table 6-11 I2C VDDIO Interface Header - J30
ReferenceSignalDescription
J36VDD_I2CSelects I2C IO bus voltage
Short pins 1-2: 3.3V IO (Default)
Short pins 2-3: 1.8V IO