DLPU100B May   2020  – June 2024 DLP2021-Q1 , DLP3021-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Purpose and Scope
  5. 2FPGA Pin Configuration and Functions
    1. 2.1 DMD Interface
    2. 2.2 Light Control
    3. 2.3 Communication
    4. 2.4 Support
    5. 2.5 FPGA Dedicated Pins
    6. 2.6 Power and Ground
    7. 2.7 Unused Pins
  6. 3Specifications
    1. 3.1 Recommended Operating Conditions
    2. 3.2 FPGA Power Consumption
    3. 3.3 Host SPI Interface Timing
    4. 3.4 Power Supply and Reset Timing
      1. 3.4.1 Power-Up Timing
      2. 3.4.2 Power-Down Timing
      3. 3.4.3 Brownout Detection
    5. 3.5 DMD Interface Timing
    6. 3.6 Flash Memory Interface Timing
    7. 3.7 Reference Clock Timing
    8. 3.8 I2C Interface Timing
  7. 4Feature Descriptions
    1. 4.1 Video Control
      1. 4.1.1 Video Options
      2. 4.1.2 Example 1: Display a Static Image
      3. 4.1.3 Example 2: Display 1 Video Repeatedly
      4. 4.1.4 Example 3: Display Two Videos Then Stop
      5. 4.1.5 Example 4: Display a Video Once and Then Display an Image Forever
      6. 4.1.6 Example 5: Display 3+ Videos/Images Seamlessly
    2. 4.2 Temperature Measurements
    3. 4.3 PWM Outputs
    4. 4.4 Host IRQ Interrupt Signal
    5. 4.5 Video and Image Compression
  8. 5Layout
  9. 6Host Command Protocol
    1. 6.1 SPI Specifications
    2. 6.2 SPI Write Command
    3. 6.3 SPI Read Command
  10. 7FPGA Register Definitions
  11. 8Revision History

5 Layout

For new board designs, ensure proper trace length matching of the FPGA to flash memory interface and DMD interface.

  • DMD clock and data
    • This consists of the signals between the FPGA and the DMD synchronous with DCLK, including D0-D14, LOADB, SCTRL, RESET_STROBE, and TRC. The trace length matching requirement for these signals is ±50mils.
    • DAD_BUS and SAC_BUS are synchronous to SAC_CLK. These signals should be matched within 20mm of each other but do not have matching requirements to the previous set of signals.
    • DMD_TMS, DMD_TDO, DMD_TDI are synchronous to DMD_TCK and should be matched within 20mm of each other but do not have matching requirements to the previous set of signals.
  • Flash clock and data
    • This consists of the eight data signals, clock, chip select, and data strobe between the FPGA and the flash memory. The trace length matching requirement for these signals is ±15mm.

For FPGA specific layout guidelines, see the Xilinx 7 Series FPGAs PCB Design Guide.