SNLS698A April   2021  – September 2023 TDES960

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  DC Electrical Characteristics
    6. 6.6  AC Electrical Characteristics
    7. 6.7  CSI-2 Timing Specifications
    8. 6.8  Recommended Timing for the Serial Control Bus
    9. 6.9  Timing Diagrams
    10. 6.10 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 Functional Description
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1  CSI-2 Mode
      2. 7.4.2  RAW Mode
      3. 7.4.3  MODE Pin
      4. 7.4.4  REFCLK
      5. 7.4.5  Receiver Port Control
        1. 7.4.5.1 Video Stream Forwarding
      6. 7.4.6  Input Jitter Tolerance
      7. 7.4.7  Adaptive Equalizer
        1. 7.4.7.1 Channel Requirements
        2. 7.4.7.2 Adaptive Equalizer Algorithm
        3. 7.4.7.3 AEQ Settings
          1. 7.4.7.3.1 AEQ Start-Up and Initialization
          2. 7.4.7.3.2 AEQ Range
          3. 7.4.7.3.3 AEQ Timing
          4. 7.4.7.3.4 AEQ Threshold
      8. 7.4.8  Channel Monitor Loop-Through Output Driver
        1. 7.4.8.1 Code Example for CMLOUT V3LINK RX Port 0:
      9. 7.4.9  RX Port Status
        1. 7.4.9.1 RX Parity Status
        2. 7.4.9.2 V3Link Decoder Status
        3. 7.4.9.3 RX Port Input Signal Detection
        4. 7.4.9.4 Line Counter
        5. 7.4.9.5 Line Length
      10. 7.4.10 Sensor Status
      11. 7.4.11 GPIO Support
        1. 7.4.11.1 GPIO Input Control and Status
        2. 7.4.11.2 GPIO Output Pin Control
        3. 7.4.11.3 Forward Channel GPIO
        4. 7.4.11.4 Back Channel GPIO
        5. 7.4.11.5 GPIO Pin Status
        6. 7.4.11.6 Other GPIO Pin Controls
      12. 7.4.12 RAW Mode LV / FV Controls
      13. 7.4.13 CSI-2 Protocol Layer
      14. 7.4.14 CSI-2 Short Packet
      15. 7.4.15 CSI-2 Long Packet
      16. 7.4.16 CSI-2 Data Identifier
      17. 7.4.17 Virtual Channel and Context
      18. 7.4.18 CSI-2 Mode Virtual Channel Mapping
        1. 7.4.18.1 Example 1
        2. 7.4.18.2 Example 2
      19. 7.4.19 CSI-2 Transmitter Frequency
      20. 7.4.20 CSI-2 Output Bandwidth
        1. 7.4.20.1 CSI-2 Output Bandwidth Calculation Example
      21. 7.4.21 CSI-2 Transmitter Status
      22. 7.4.22 Video Buffers
      23. 7.4.23 CSI-2 Line Count and Line Length
      24. 7.4.24 FrameSync Operation
        1. 7.4.24.1 External FrameSync Control
        2. 7.4.24.2 Internally Generated FrameSync
          1. 7.4.24.2.1 Code Example for Internally Generated FrameSync
      25. 7.4.25 CSI-2 Forwarding
        1. 7.4.25.1 Best-Effort Round Robin CSI-2 Forwarding
        2. 7.4.25.2 Synchronized CSI-2 Forwarding
        3. 7.4.25.3 Basic Synchronized CSI-2 Forwarding
          1. 7.4.25.3.1 Code Example for Basic Synchronized CSI-2 Forwarding
        4. 7.4.25.4 Line-Interleaved CSI-2 Forwarding
          1. 7.4.25.4.1 Code Example for Line-Interleaved CSI-2 Forwarding
        5. 7.4.25.5 Line-Concatenated CSI-2 Forwarding
          1. 7.4.25.5.1 Code Example for Line-Concatenated CSI-2 Forwarding
        6. 7.4.25.6 CSI-2 Replicate Mode
        7. 7.4.25.7 CSI-2 Transmitter Output Control
        8. 7.4.25.8 Enabling and Disabling CSI-2 Transmitters
    5. 7.5 Programming
      1. 7.5.1  Serial Control Bus
      2. 7.5.2  Second I2C Port
      3. 7.5.3  I2C Target Operation
      4. 7.5.4  Remote Target Operation
      5. 7.5.5  Remote Target Addressing
      6. 7.5.6  Broadcast Write to Remote Devices
        1. 7.5.6.1 Code Example for Broadcast Write
      7. 7.5.7  I2C Controller Proxy
      8. 7.5.8  I2C Controller Proxy Timing
        1. 7.5.8.1 Code Example for Configuring Fast-Mode Plus I2C Operation
      9. 7.5.9  Interrupt Support
        1. 7.5.9.1 Code Example to Enable Interrupts
        2. 7.5.9.2 V3Link Receive Port Interrupts
        3. 7.5.9.3 Interrupts on Forward Channel GPIO
        4. 7.5.9.4 Interrupts on Change in Sensor Status
        5. 7.5.9.5 Code Example to Readback Interrupts
        6. 7.5.9.6 CSI-2 Transmit Port Interrupts
      10. 7.5.10 Error Handling
        1. 7.5.10.1 Receive Frame Threshold
        2. 7.5.10.2 Port PASS Control
      11. 7.5.11 Timestamp – Video Skew Detection
      12. 7.5.12 Pattern Generation
        1. 7.5.12.1 Reference Color Bar Pattern
        2. 7.5.12.2 Fixed Color Patterns
        3. 7.5.12.3 Pattern Generator Programming
          1. 7.5.12.3.1 Determining Color Bar Size
        4. 7.5.12.4 Code Example for Pattern Generator
      13. 7.5.13 V3Link BIST Mode
        1. 7.5.13.1 BIST Operation
    6. 7.6 Register Maps
      1. 7.6.1 Main Registers
      2. 7.6.2 Indirect Access Registers
        1. 7.6.2.1 PATGEN_And_CSI-2 Registers
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Power Over Coax
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
    4. 8.4 Power Supply Recommendations
      1. 8.4.1 VDD Power Supply
      2. 8.4.2 Power-Up Sequencing
        1. 8.4.2.1 PDB Pin
        2. 8.4.2.2 System Initialization
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
        1. 8.5.1.1 Ground
        2. 8.5.1.2 Routing V3Link Signal Traces and PoC Filter
        3. 8.5.1.3 CSI-2 Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.5.11 Timestamp – Video Skew Detection

The TDES960 implements logic to detect skew between video signaling from attached sensors. For each input port, the TDES960 provides the ability to capture a time-stamp for both a start-of-frame and start-of-line event. Comparison of timestamps can provide information on the relative skew between the ports. Start-of-frame timestamps are generated at the active edge of the Vertical Sync signal in Raw mode. Start-of-line timestamps are generated at the start of reception of the Nth line of video data after the Start of Frame for either mode of operation. The function does not use the Line Start (LS) packet or Horizontal Sync controls to determine the start of lines.

The skew detection can run in either a FrameSync mode or free-run mode.

Skew detection can be individually enabled for each RX port.

For start-of-line timestamps, a line number must be programmed. The same line number is used for all 4 channels. Prior to reading timestamps, the TS_FREEZE bit for each port that will be read must be set. This will prevent overwrite of the timestamps by the detection circuit until all timestamps have been read. The freeze condition will be released automatically once all frozen timestamps have been read. The freeze bits can also be cleared if it does not read all the timestamp values.

The TS_STATUS register includes the following:

  • Flags to indicate multiple start-of-frame per FrameSync period
  • Flag to indicate Timestamps Ready
  • Flags to indicate Timestamps valid (per port) – if ports are not synchronized, all ports may not indicate valid timestamps

The Timestamp Ready flag will be cleared when the TS_FREEZE bit is cleared.