DLPU062B March   2018  – January 2024 DLPC3437

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 System Overview
    2. 1.2 Software Overview
      1. 1.2.1 I2C Overview
      2. 1.2.2 I2C Transactions
      3. 1.2.3 Data Flow Control
    3. 1.3 Related Documentation
  5. 2System Initialization
    1. 2.1 Boot ROM
    2. 2.2 Device Startup
  6. 3I2C Commands
    1. 3.1 General Operation Commands
      1. 3.1.1  Write Input Source Select (05h)
        1. 3.1.1.1 Write Parameters
      2. 3.1.2  Read Input Source Select (06h)
        1. 3.1.2.1 Read Parameters
        2. 3.1.2.2 Return Parameters
      3. 3.1.3  Write External Video Chroma Processing Select (09h)
        1. 3.1.3.1 Write Parameters
      4. 3.1.4  Read External Video Chroma Processing Select (0Ah)
        1. 3.1.4.1 Read Parameters
        2. 3.1.4.2 Return Parameters
      5. 3.1.5  Write Test Pattern Select (0Bh)
        1. 3.1.5.1 Write Parameters
      6. 3.1.6  Read Test Pattern Select (0Ch)
        1. 3.1.6.1 Read Parameters
        2. 3.1.6.2 Return Parameters
      7. 3.1.7  Write Splash Screen Select (0Dh)
        1. 3.1.7.1 Write Parameters
      8. 3.1.8  Read Splash Screen Select (0Eh)
        1. 3.1.8.1 Read Parameters
        2. 3.1.8.2 Return Parameters
      9. 3.1.9  Read Splash Screen Header (0Fh)
        1. 3.1.9.1 Read Parameters
        2. 3.1.9.2 Return Parameters
      10. 3.1.10 Write Display Image Orientation (14h)
        1. 3.1.10.1 Write Parameters
      11. 3.1.11 Read Display Image Orientation (15h)
        1. 3.1.11.1 Read Parameters
        2. 3.1.11.2 Return Parameters
      12. 3.1.12 Write Display Image Curtain (16h)
        1. 3.1.12.1 Write Parameters
      13. 3.1.13 Read Display Image Curtain (17h)
        1. 3.1.13.1 Read Parameters
        2. 3.1.13.2 Return Parameters
      14. 3.1.14 Write Image Freeze (1Ah)
        1. 3.1.14.1 Write Parameters
        2. 3.1.14.2 Use of Image Freeze to Reduce On-Screen Artifacts
      15. 3.1.15 Read Image Freeze (1Bh)
        1. 3.1.15.1 Read Parameters
        2. 3.1.15.2 Return Parameters
      16. 3.1.16 Write 3-D Control (20h)
        1. 3.1.16.1 Write Parameters
      17. 3.1.17 Read 3-D Control (21h)
        1. 3.1.17.1 Read Parameters
        2. 3.1.17.2 Return Parameters
      18. 3.1.18 Write Look Select (22h)
        1. 3.1.18.1 Write Parameters
      19. 3.1.19 Read Look Select (23h)
        1. 3.1.19.1 Read Parameters
        2. 3.1.19.2 Return Parameters
      20. 3.1.20 Read Sequence Header Attributes (26h)
        1. 3.1.20.1 Read Parameters
        2. 3.1.20.2 Return Parameters
      21. 3.1.21 Write Degamma/CMT Select (27h)
        1. 3.1.21.1 Write Parameters
      22. 3.1.22 Read Degamma/CMT Select (28h)
        1. 3.1.22.1 Read Parameters
        2. 3.1.22.2 Return Parameters
      23. 3.1.23 Write CCA Select (29h)
        1. 3.1.23.1 Write Parameters
      24. 3.1.24 Read CCA Select (2Ah)
        1. 3.1.24.1 Read Parameters
        2. 3.1.24.2 Return Parameters
      25. 3.1.25 Read DMD Sequencer Sync Mode (2Ch)
        1. 3.1.25.1 Read Parameters
        2. 3.1.25.2 Return Parameters
      26. 3.1.26 Write Execute Flash Batch File (2Dh)
        1. 3.1.26.1 Write Parameters
      27. 3.1.27 Write Input Image Size (2Eh)
        1. 3.1.27.1 Write Parameters
      28. 3.1.28 Read Input Image Size (2Fh)
        1. 3.1.28.1 Read Parameters
        2. 3.1.28.2 Return Parameters
      29. 3.1.29 Write 3-D Reference (30h)
        1. 3.1.29.1 Write Parameters
      30. 3.1.30 Write Splash Screen Execute (35h)
        1. 3.1.30.1 Write Parameters
      31. 3.1.31 Write Parallel Data Mask Control (37h)
        1. 3.1.31.1 Write Parameters
      32. 3.1.32 Read Parallel Data Mask Control (38h)
        1. 3.1.32.1 Read Parameters
        2. 3.1.32.2 Return Parameters
      33. 3.1.33 Write Mirrors Lock Command (39h)
        1. 3.1.33.1 Write Parameters
      34. 3.1.34 Read Mirrors Lock Command (3Ah)
        1. 3.1.34.1 Read Parameters
        2. 3.1.34.2 Return Parameters
      35. 3.1.35 Write FPD Link Pixel Map Mode (4Bh)
        1.       Write Parameters
      36. 3.1.36 Read FPD Link Pixel Map Mode (4Ch)
        1. 3.1.36.1 Read Parameters
        2.       Return Parameters
      37. 3.1.37 Write FPGA Input Video Chroma Processing Select (4Dh)
        1.       Write Parameters
      38. 3.1.38 Read FPGA Input Video Chroma Processing Select (4Eh)
        1. 3.1.38.1 Read Parameters
        2.       Return Parameters
    2. 3.2 Illumination Control Commands
      1. 3.2.1  Write LED Output Control Method (50h)
        1. 3.2.1.1 Write Parameters
      2. 3.2.2  Read LED Output Control Method (51h)
        1. 3.2.2.1 Read Parameters
        2. 3.2.2.2 Return Parameters
      3. 3.2.3  Write RGB LED Enable (52h)
        1. 3.2.3.1 Write Parameters
      4. 3.2.4  Read RGB LED Enable (53h)
        1. 3.2.4.1 Read Parameters
        2. 3.2.4.2 Return Parameters
      5. 3.2.5  Write RGB LED Current (54h)
        1. 3.2.5.1 Write Parameters
      6. 3.2.6  Read RGB LED Current (55h)
        1. 3.2.6.1 Read Parameters
        2. 3.2.6.2 Return Parameters
      7. 3.2.7  Read CAIC LED Max Available Power (57h)
        1. 3.2.7.1 Read Parameters
        2. 3.2.7.2 Return Parameters
      8. 3.2.8  Write RGB LED Max Current (5Ch)
        1. 3.2.8.1 Write Parameters
      9. 3.2.9  Read RGB LED Max Current (5Dh)
        1. 3.2.9.1 Read Parameters
        2. 3.2.9.2 Return Parameters
      10. 3.2.10 Read CAIC RGB LED Current (5Fh)
        1. 3.2.10.1 Read Parameters
        2. 3.2.10.2 Return Parameters
      11. 3.2.11 Write XPR FPGA Input Image Size (60h)
        1.       Write Parameters
      12. 3.2.12 Read XPR FPGA Input Image Size (61h)
        1. 3.2.12.1 Read Parameters
        2. 3.2.12.2 Return Parameters
      13. 3.2.13 Write XPR FPGA Source Select (62h)
        1.       Write Parameters
      14. 3.2.14 Read XPR FPGA Source Select (63h)
        1. 3.2.14.1 Read Parameters
        2. 3.2.14.2 Return Parameters
      15. 3.2.15 Read XPR FPGA Version (64h)
        1. 3.2.15.1 Read Parameters
        2.       Return Parameters
      16. 3.2.16 Write XPR FPGA Test Pattern Select (67h)
        1.       Write Parameters
      17. 3.2.17 Read XPR FPGA Test Pattern Select (68h)
        1. 3.2.17.1 Read Parameters
        2.       Return Parameters
      18. 3.2.18 Write XPR FPGA Parallel Video Control (6Bh)
        1.       Write Parameters
      19. 3.2.19 Read XPR FPGA Parallel Video Control (6Ch)
        1. 3.2.19.1 Read Parameters
        2.       Return Parameters
      20. 3.2.20 Write XPR FPGA Video Format Select (6Dh)
        1.       Write Parameters
      21. 3.2.21 Read XPR FPGA Video Format Select (6Eh)
        1. 3.2.21.1 Read Parameters
        2.       Return Parameters
      22. 3.2.22 Read XPR FPGA Status (6Fh)
        1. 3.2.22.1 Read Parameters
        2.       Return Parameters
      23. 3.2.23 Write Actuator Latency (70h)
        1. 3.2.23.1 Write Parameters
      24. 3.2.24 Read Actuator Latency (71h)
        1. 3.2.24.1 Read Parameters
        2.       Return Parameters
      25. 3.2.25 Write Actuator Gain (72h)
        1.       Write Parameters
      26. 3.2.26 Read Actuator Gain (73h)
        1. 3.2.26.1 Read Parameters
        2.       Return Parameters
      27. 3.2.27 Write Segment Length (74h)
        1.       Write Parameters
      28. 3.2.28 Read Segment Length (75h)
        1. 3.2.28.1 Read Parameters
        2. 3.2.28.2 Return Parameters
      29. 3.2.29 Write Manual Actuator Sync Delay (76h)
        1. 3.2.29.1 Write Parameters
      30. 3.2.30 Read Manual Actuator Sync Delay (77h)
        1. 3.2.30.1 Read Parameters
        2. 3.2.30.2 Return Parameters
      31. 3.2.31 Write Manual Actuator Offset (78h)
        1. 3.2.31.1 Write Parameters
      32. 3.2.32 Read Manual Actuator Offset (79h)
        1. 3.2.32.1 Read Parameters
        2. 3.2.32.2 Return Parameters
    3. 3.3 Image Processing Control Commands
      1. 3.3.1  Write Local Area Brightness Boost Control (80h)
        1. 3.3.1.1 Write Parameters
      2. 3.3.2  Read Local Area Brightness Boost Control (81h)
        1. 3.3.2.1 Read Parameters
        2. 3.3.2.2 Return Parameters
      3. 3.3.3  Write CAIC Image Processing Control (84h)
        1. 3.3.3.1 Write Parameters
      4. 3.3.4  Read CAIC Image Processing Control (85h)
        1. 3.3.4.1 Read Parameters
        2. 3.3.4.2 Return Parameters
      5. 3.3.5  Write Color Coordinate Adjustment Control (86h)
        1. 3.3.5.1 Write Parameters
      6. 3.3.6  Read Color Coordinate Adjustment Control (87h)
        1. 3.3.6.1 Read Parameters
        2. 3.3.6.2 Return Parameters
      7. 3.3.7  Write Keystone Correction Control (88h)
        1. 3.3.7.1 Write Parameters
      8. 3.3.8  Read Keystone Correction Control (89h)
        1. 3.3.8.1 Read Parameters
        2. 3.3.8.2 Return Parameters
      9. 3.3.9  Write Keystone Projection Pitch Angle (BBh)
        1. 3.3.9.1 Write Parameters
      10. 3.3.10 Read Keystone Projection Pitch Angle (BCh)
        1. 3.3.10.1 Read Parameters
        2. 3.3.10.2 Return Parameters
    4. 3.4 General Setup Commands
      1. 3.4.1 Write Border Color (B2h)
        1. 3.4.1.1 Write Parameters
      2. 3.4.2 Read Border Color (B3h)
        1. 3.4.2.1 Read Parameters
        2. 3.4.2.2 Return Parameters
      3. 3.4.3 Write Parallel Interface Sync Polarity (B6h)
        1. 3.4.3.1 Write Parameters
      4. 3.4.4 Read Parallel Interface Sync Polarity (B7h)
        1. 3.4.4.1 Read Parameters
        2. 3.4.4.2 Return Parameters
      5. 3.4.5 Read Auto Framing Information (BAh)
        1. 3.4.5.1 Read Parameters
        2. 3.4.5.2 Return Parameters
    5. 3.5 Administrative Commands
      1. 3.5.1  Read Short Status (D0h)
        1. 3.5.1.1 Read Parameters
        2. 3.5.1.2 Return Parameters
      2. 3.5.2  Read System Status (D1h)
        1. 3.5.2.1 Read Parameters
        2. 3.5.2.2 Return Parameters
      3. 3.5.3  Read System Software Version (D2h)
        1. 3.5.3.1 Read Parameters
        2. 3.5.3.2 Return Parameters
      4. 3.5.4  Read Communication Status (D3h)
        1. 3.5.4.1 Read Parameters
        2. 3.5.4.2 Return Parameters
      5. 3.5.5  Read Controller Device ID (D4h)
        1. 3.5.5.1 Read Parameters
        2. 3.5.5.2 Return Parameters
      6. 3.5.6  Read DMD Device ID (D5h)
        1. 3.5.6.1 Read Parameters
        2. 3.5.6.2 Return Parameters
      7. 3.5.7  Read System Temperature (D6h)
        1. 3.5.7.1 Read Parameters
        2. 3.5.7.2 Return Parameters
      8. 3.5.8  Read Flash Build Version (D9h)
        1. 3.5.8.1 Read Parameters
        2. 3.5.8.2 Return Parameters
      9. 3.5.9  Write Flash Batch File Delay (DBh)
        1. 3.5.9.1 Write Parameters (DBh)
      10. 3.5.10 Read DMD I/F Training Data (DCh)
        1. 3.5.10.1 Read Parameters
        2. 3.5.10.2 Return Parameters
    6. 3.6 Flash Update Commands
      1. 3.6.1 Read Flash Update PreCheck (DDh)
        1. 3.6.1.1 Read Parameters
        2. 3.6.1.2 Return Parameters
      2. 3.6.2 Write Flash Data Type Select (DEh)
        1. 3.6.2.1 Write Parameters
      3. 3.6.3 Write Flash Data Length (DFh)
        1. 3.6.3.1 Write Parameters
      4. 3.6.4 Write Erase Flash Data (E0h)
        1. 3.6.4.1 Write Parameters
      5. 3.6.5 Write Flash Start (E1h)
        1. 3.6.5.1 Write Parameters
      6. 3.6.6 Write Flash Continue (E2h)
        1. 3.6.6.1 Write Parameters
      7. 3.6.7 Read Flash Start (E3h)
        1. 3.6.7.1 Read Parameters
        2. 3.6.7.2 Return Parameters
      8. 3.6.8 Read Flash Continue (E4h)
        1. 3.6.8.1 Read Parameters
        2. 3.6.8.2 Return Parameters
  7. 4Revision History

3.2.5.1 Write Parameters

Table 3-62 describes the write parameters.

Table 3-62 Write Parameters
Parameter BytesDescription
Byte 1Red LED current parameter (LSByte)
Byte 2Red LED current parameter (MSByte)
Byte 3Green LED current parameter (LSByte)
Byte 4Green LED current parameter (MSByte)
Byte 5Blue LED current parameter (LSByte)
Byte 6Blue LED current parameter (MSByte)

When an all-white image is displayed, this command allows the system white point to be adjusted while establishing the total LED power whether the CAIC algorithm is enabled or disabled.

The parameters specified by this command have a resolution of 10 bits, and are defined by the appropriate DLPA200x specification.

When the CAIC algorithm is disabled, this command directly sets the LED currents (the R, G, and B values provided are sent directly to the DLPA200x device) regardless of the image being displayed.

When the CAIC algorithm is enabled:

  • This command directly sets the LED currents when an all-white image is displayed. If the image is changed from an all-white image, depending on the image the CAIC algorithm may alter one or more of the LED currents from those specified by this command, and the total LED power may drop. The Read CAIC RGB LED Current command can read the actual LED currents for the image currently displayed.
  • In the case of an all-white image, the values read by the Read CAIC RGB LED Current command closely match, but may not exactly match, those requested using the Write RGB LED Current command. For an all-white image, the Read CAIC RGB LED Current command gives currents within +/-4 DLPA200x device current steps for each LED color relative to those requested by the Write RGB LED Current command.
  • When the Write RGB LED Current command changes the LED currents, the LED current for any color must not be changed by more than +/-25% from the nominal current used for that color when the CAIC LUTs were created. No LED current can be set to a current value beyond the maximum value supported in the CAIC intensity-to-current LUT for the corresponding color.
  • The maximum total LED power for any displayed image occurs for an all-white image, since the CAIC algorithm requests the CAIC LED maximum available power. The maximum available LED power for the CAIC is controlled by the Write RGB LED Current command, as this command controls currents for an all-white image. After the currents are adjusted, the Read CAIC LED Max Available Power command is used to see the maximum power in watts derived from the CAIC.