SLLSEW7A December   2016  – June 2018 SN65DSI83-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     SN65DSI83-Q1 Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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 Electrical Characteristics
    6. 6.6 Switching Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Clock Configurations and Multipliers
      2. 8.3.2 ULPS
      3. 8.3.3 LVDS Pattern Generation
      4. 8.3.4 Reset Implementation
      5. 8.3.5 Initialization Sequence
      6. 8.3.6 LVDS Output Formats
      7. 8.3.7 DSI Lane Merging
      8. 8.3.8 DSI Pixel Stream Packets
      9. 8.3.9 DSI Video Transmission Specifications
    4. 8.4 Programming
      1. 8.4.1 Local I2C Interface Overview
    5. 8.5 Register Maps
      1. 8.5.1 Control and Status Registers Overview
        1. 8.5.1.1 CSR Bit Field Definitions – ID Registers
          1. 8.5.1.1.1 Registers 0x00 – 0x08
            1. Table 4. Registers 0x00 – 0x08 Field Descriptions
        2. 8.5.1.2 CSR Bit Field Definitions – Reset and Clock Registers
          1. 8.5.1.2.1 Register 0x09
            1. Table 5. Register 0x09 Field Descriptions
          2. 8.5.1.2.2 Register 0x0A
            1. Table 6. Register 0x0A Field Descriptions
          3. 8.5.1.2.3 Register 0x0B
            1. Table 7. Register 0x0B Field Descriptions
          4. 8.5.1.2.4 Register 0x0D
            1. Table 8. Register 0x0D Field Descriptions
        3. 8.5.1.3 CSR Bit Field Definitions – DSI Registers
          1. 8.5.1.3.1 Register 0x10
            1. Table 9. Register 0x10 Field Descriptions
          2. 8.5.1.3.2 Register 0x11
            1. Table 10. Register 0x11 Field Descriptions
          3. 8.5.1.3.3 Register 0x12
            1. Table 11. Register 0x12 Field Descriptions
        4. 8.5.1.4 CSR Bit Field Definitions – LVDS Registers
          1. 8.5.1.4.1 Register 0x18
            1. Table 12. Register 0x18 Field Descriptions
          2. 8.5.1.4.2 Register 0x19
            1. Table 13. Register 0x19 Field Descriptions
          3. 8.5.1.4.3 Register 0x1A
            1. Table 14. Register 0x1A Field Descriptions
          4. 8.5.1.4.4 Register 0x1B
            1. Table 15. Register 0x1B Field Descriptions
        5. 8.5.1.5 CSR Bit Field Definitions – Video Registers
          1. 8.5.1.5.1  Register 0x20
            1. Table 16. Register 0x20 Field Descriptions
          2. 8.5.1.5.2  Register 0x21
            1. Table 17. Register 0x21 Field Descriptions
          3. 8.5.1.5.3  Register 0x24
            1. Table 18. Register 0x24 Field Descriptions
          4. 8.5.1.5.4  Register 0x25
            1. Table 19. Register 0x25 Field Descriptions
          5. 8.5.1.5.5  Register 0x28
            1. Table 20. Register 0x28 Field Descriptions
          6. 8.5.1.5.6  Register 0x29
            1. Table 21. Register 0x29 Field Descriptions
          7. 8.5.1.5.7  Register 0x2C
            1. Table 22. Register 0x2C Field Descriptions
          8. 8.5.1.5.8  Register 0x2D
            1. Table 23. Register 0x2D Field Descriptions
          9. 8.5.1.5.9  Register 0x30
            1. Table 24. Register 0x30 Field Descriptions
          10. 8.5.1.5.10 Register 0x31
            1. Table 25. Register 0x31 Field Descriptions
          11. 8.5.1.5.11 Register 0x34
            1. Table 26. Register 0x34 Field Descriptions
          12. 8.5.1.5.12 Register 0x36
            1. Table 27. Register 0x36 Field Descriptions
          13. 8.5.1.5.13 Register 0x38
            1. Table 28. Register 0x38 Field Descriptions
          14. 8.5.1.5.14 Register 0x3A
            1. Table 29. Register 0x3A Field Descriptions
          15. 8.5.1.5.15 Register 0x3C
            1. Table 30. Register 0x3C Field Descriptions
        6. 8.5.1.6 CSR Bit Field Definitions – IRQ Registers
          1. 8.5.1.6.1 Register 0xE0
            1. Table 31. Register 0xE0 Field Descriptions
          2. 8.5.1.6.2 Register 0xE1
            1. Table 32. Register 0xE1 Field Descriptions
          3. 8.5.1.6.3 Register 0xE5
            1. Table 33. Register 0xE5 Field Descriptions
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Video STOP and Restart Sequence
      2. 9.1.2 Reverse LVDS Pin Order Option
      3. 9.1.3 IRQ Usage
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Example Script
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
    1. 10.1 VCC Power Supply
    2. 10.2 VCORE Power Supply
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Package Specific
      2. 11.1.2 Differential Pairs
      3. 11.1.3 Ground
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resource
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

9.2.2 Detailed Design Procedure

The video resolution parameters required by the panel need to be programmed into the SN65DSI83-Q1 device. For this example, the parameters programmed are the following:

Horizontal Active = 1280 or 0×500

CHA_ACTIVE_LINE_LENGTH_LOW = 0×00

CHA_ACTIVE_LINE_LENGTH_HIGH = 0×05

Vertical Active = 800 or 0×320

CHA_VERTICAL_DISPLAY_SIZE_LOW = 0×20

CHA_VERTICAL_DISPLAY_SIZE_HIGH = 0×03

Horizontal Pulse Width = 128 or 0×80

CHA_HSYNC_PULSE_WIDTH_LOW = 0×80

CHA_HSYNC_PULSE_WIDTH_HIGH = 0×00

Vertical Pulse Width = 7

CHA_VSYNC_PULSE_WIDTH_LOW = 0×07

CHA_VSYNC_PULSE_WIDTH_HIGH = 0×00

Horizontal Backporch = HorizontalBlanking – (HorizontalSyncOffset + HorizontalSyncPulseWidth)

Horizontal Backporch = 384 – (64 + 128)

Horizontal Backporch = 192 or 0×C0

CHA_HORIZONTAL_BACK_PORCH = 0×C0

Vertical Backporch = VerticalBlanking – (VerticalSyncOffset +VerticalSyncPulseWidth)

Vertical Backporch = 30 – (3 + 7)

Vertical Backporch = 20 or 0×14

CHA_VERTICAL_BACK_PORCH = 0×14

Horizontal Frontporch = HorizontalSyncOffset

Horizontal Frontporch = 64 or 0×40

CHA_HORIZONTAL_FRONT_PORCH = 0×40

Vertical Frontporch = VerticalSyncOffset

Vertical Frontporch = 3

CHA_VERTICAL_FRONT_PORCH = 0×03

The pattern generation feature can be enabled by setting the CHA_TEST_PATTERN bit at address 0×3C and configuring the TEST PATTERN GENERATION PURPOSE ONLY register as shown in Table 30.

LVDS clock is derived from the DSI channel A clock. When the MIPI D-PHY channel A HS clock is used as the LVDS clock source, it is divided by the factor in DSI_CLK_DIVIDER (CSR 0×0B.7:3) to generate the LVDS output clock. Additionally, LVDS_CLK_RANGE (CSR 0×0A.3:1) and CH_DSI_CLK_RANGE(CSR 0×12) must be set to the frequency range of the LVDS output clock and DSI Channel A input clock respectively for the internal PLL to operate correctly. After these settings are programmed, PLL_EN (CSR 0×0D.0) must be set to enable the internal PLL.

LVDS_CLK_RANGE = 2 – 62.5 MHz ≤ LVDS_CLK < 87.5 MHz

HS_CLK_SRC = 1 – LVDS pixel clock derived from MIPI D-PHY channel A

DSI_CLK_DIVIDER = 00101 – Divide by 6

CHA_DSI_LANES = 00 – Four lanes are enabled

CHA_DSI_CLK_RANGE = 0×64 – 500 MHz