ZHCSIP7B August   2018  – September 2023 DS90UB962-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1.     Pin 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 Transmission Distance
        2. 7.4.7.2 Channel Requirements
        3. 7.4.7.3 Adaptive Equalizer Algorithm
        4. 7.4.7.4 AEQ Settings
          1. 7.4.7.4.1 AEQ Start-Up and Initialization
          2. 7.4.7.4.2 AEQ Range
          3. 7.4.7.4.3 AEQ Timing
          4. 7.4.7.4.4 AEQ Threshold
      8. 7.4.8  Channel Monitor Loop-Through Output Driver
        1. 7.4.8.1 Code Example for CMLOUT FPD3 RX Port 0:
      9. 7.4.9  RX Port Status
        1. 7.4.9.1 RX Parity Status
        2. 7.4.9.2 FPD-Link 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
      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 Transmitter Output Control
        7. 7.4.25.7 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 FPD-Link III 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 FPD-Link 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 FPD-Link III 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 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Mechanical, Packaging, and Orderable Information

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7.4.8 Channel Monitor Loop-Through Output Driver

The DS90UB962-Q1 includes an internal Channel Monitor Loop-through output on the CMLOUTP/N pins. The CMLOUTP/N pins supply a buffered loop-through output driver to observe the jitter after equalization for each of the four RX receiver channels. The CMLOUT monitors the post EQ stage, thus providing the recovered input of the deserializer signal. The measured serial data width on the CMLOUT loop-through is the total jitter including the internal driver, AEQ, back channel echo, and so forth. Each channel also has its own CMLOUT monitor and can be used for debug purposes. This CMLOUT is useful in identifying gross signal conditioning issues.

3 shows the minimum CMLOUT differential eye opening as a measure of acceptable forward channel signal integrity. A CMLOUT eye opening of at least 0.35 UI suggests that the forward channel signal integrity is likely acceptable. However, further testing such as BIST is recommended to verify error-free operation. An eye opening of less than 0.35 UI indicates possible issues with the forward channel signal integrity.

Table 7-9 CML Monitor Output Driver
PARAMETERTEST CONDITIONSPINMINTYPMAXUNIT
EWDifferential Output Eye OpeningRL = 100 Ω
(Figure 7-5)		CMLOUTP, CMLOUTN0.35UI(1)
(1) Unit Interval (UI) is equivalent to one ideal serialized data bit width. The UI scales with serializer input PCLK frequency (RAW Modes), serializer CLK_IN frequency (CSI-2 Mode, Serializer Non-synchronous Mode) or REFCLK (CSI-2 Mode, Serializer Synchronous Mode).
CSI-2 Mode, Serializer Synchronous Mode: 1 UI = 1 / ( 160 x REFCLK ) (typ)
CSI-2 Mode, Serializer Non-synchronous Mode: 1 UI = 1 / ( 80 x CLK_IN) (typ)
RAW 10-bit mode: 1 UI = 1 / ( 28 x PCLK / 2 )
RAW 12-bit HF mode: 1 UI = 1 / ( 28 x 2/3 x PCLK )
RAW 12-bit LF mode: 1 UI = 1 / ( 28 x PCLK )
GUID-D6BF2E05-94B7-4A2A-8F99-B3C119E9BDD8-low.gifFigure 7-5 CMLOUT Output Driver

Table 7-10 includes details on selecting the corresponding RX receiver of CMLOUTP/N configuration.

Table 7-10 Channel Monitor Loop-Through Output Configuration
FPD3 RX Port 0FPD3 RX Port 1FPD3 RX Port 2FPD3 RX Port 3
ENABLE MAIN LOOPTHRU DRIVER0xB0 = 0x14
0xB1 = 0x00
0xB2 = 0x80		0xB0 = 0x14
0xB1 = 0x00
0xB2 = 0x80		0xB0 = 0x14
0xB1 = 0x00
0xB2 = 0x80		0xB0 = 0x14
0xB1 = 0x00
0xB2 = 0x80
SELECT CHANNEL MUX0xB1 = 0x01
0xB2 = 0x01		0xB1 = 0x01
0xB2 = 0x02		0xB1 = 0x01
0xB2 = 0x04		0xB1 = 0x01
0xB2 = 0x08
SELECT RX PORT0xB0 = 0x04
0xB1 = 0x0F
0xB2 = 0x01
0xB1 = 0x10
0xB2 = 0x02		0xB0 = 0x08
0xB1 = 0x0F
0xB2 = 0x01
0xB1 = 0x10
0xB2 = 0x02		0xB0 = 0x0C
0xB1 = 0x0F
0xB2 = 0x01
0xB1 = 0x10
0xB2 = 0x02		0xB0 = 0x10
0xB1 = 0x0F
0xB2 = 0x01
0xB1 = 0x10
0xB2 = 0x02
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