SNLS507C September   2016  – December 2022 DS90UB934-Q1

PRODUCTION DATA  

  1.   Features
  2. 1Applications
  3. 2Description
  4. 3Revision History
  5.   Pin Configuration and Functions
  6. 4Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 ESD Ratings
    3. 4.3 Recommended Operating Conditions
    4. 4.4 Thermal Information
    5. 4.5 DC Electrical Characteristics
    6. 4.6 AC Electrical Characteristics
    7. 4.7 Recommended Timing for the Serial Control Bus
    8. 4.8 Typical Characteristics
  7. 5Detailed Description
    1. 5.1 Overview
      1. 5.1.1 Functional Description
    2. 5.2 Functional Block Diagram
    3. 5.3 Feature Description
      1. 5.3.1 Serial Frame Format
      2. 5.3.2 Line Rate Calculations for the DS90UB933/934
      3. 5.3.3 Deserializer Multiplexer Input
    4. 5.4 Device Functional Modes
      1. 5.4.1 RX MODE Pin
      2. 5.4.2 DVP Output Control
        1. 5.4.2.1 LOCK Status
      3. 5.4.3 Input Jitter Tolerance
      4. 5.4.4 Adaptive Equalizer
      5. 5.4.5 Channel Monitor Loop-Through Output Driver
        1. 5.4.5.1 Code Example for CMLOUT FPD3 RX Port 0:
      6. 5.4.6 GPIO Support
        1. 5.4.6.1 Back Channel GPIO
        2. 5.4.6.2 GPIO Pin Status
        3. 5.4.6.3 Other GPIO Pin Controls
        4. 5.4.6.4 FrameSync Operation
          1. 5.4.6.4.1 External FrameSync Control
          2. 5.4.6.4.2 Internally Generated FrameSync
            1. 5.4.6.4.2.1 Code Example for Internally Generated FrameSync
    5. 5.5 Programming
      1. 5.5.1 Serial Control Bus
        1. 5.5.1.1 I2C Target Operation
        2. 5.5.1.2 Remote Target Operation
        3. 5.5.1.3 Remote I2C Targets Data Throughput
        4. 5.5.1.4 Remote Target Addressing
        5. 5.5.1.5 Broadcast Write to Remote Target Devices
        6. 5.5.1.6 Code Example for Broadcast Write
      2. 5.5.2 Interrupt Support
        1. 5.5.2.1 Code Example to Enable Interrupts
        2. 5.5.2.2 FPD-Link III Receive Port Interrupts
        3. 5.5.2.3 Code Example to Readback Interrupts
        4. 5.5.2.4 Built-In Self Test (BIST)
          1. 5.5.2.4.1 BIST Configuration and Status
    6. 5.6 Register Maps
      1. 5.6.1 Register Description
      2. 5.6.2 Registers
      3. 5.6.3 Indirect Access Registers
      4. 5.6.4 Indirect Access Register Map
        1. 5.6.4.1 FPD3 Channel 0 Registers
        2. 5.6.4.2 FPD3 Channel 1 Registers
        3. 5.6.4.3 FPD3 RX Shared Registers
  8. 6Application and Implementation
    1. 6.1 Application Information
    2. 6.2 Power Over Coax
    3. 6.3 Typical Application
      1. 6.3.1 Design Requirements
      2. 6.3.2 Detailed Design Procedure
      3. 6.3.3 Application Curves
    4. 6.4 System Examples
    5. 6.5 Power Supply Recommendations
      1. 6.5.1 VDD Power Supply
      2. 6.5.2 Power-Up Sequencing
      3. 6.5.3 PDB Pin
      4. 6.5.4 Ground
    6. 6.6 Layout
      1. 6.6.1 Layout Guidelines
        1. 6.6.1.1 DVP Interface Guidelines
      2. 6.6.2 Layout Example
  9.   Mechanical, Packaging, and Orderable Information
  10. 7Device and Documentation Support
    1. 7.1 Documentation Support
      1. 7.1.1 Related Documentation
    2. 7.2 Glossary
    3. 7.3 Receiving Notification of Documentation Updates
    4. 7.4 Support Resources
    5. 7.5 Trademarks
  11.   Mechanical, Packaging, and Orderable Information

5.5.1.5 Broadcast Write to Remote Target Devices

The DS90UB934-Q1 provides a mechanism to broadcast I2C writes to remote devices (either remote targets or serializers). For each Receive port, the targetID and targetAlias register pairs would be programmed with the same targetAlias value so they would each respond to the local I2C access. The targetID value would match the intended remote device address, either remote target or serializers. For each receive port, on of the targetAlias registers is set with an Alias value. For each port, the targetID value is set to the address of the remote device. These values may be the same. To access the remote serializer registers rather than a remote target, the serializer ID (SER_IDX or SER_IDY) would be used as the targetID value.