DBLCD32 - LCD/TFT Display Controller

Block Diagram

Solution Type: IP Core

End Market: Automotive, Broadcast, Computer & Storage, Consumer, Industrial, Medical, Military, Test & Measurement, Wireless, Wireline

Evaluation Method: OpenCore, OpenCore Plus

Technology: Processors and Peripherals: Peripherals

Arria Series: Intel® Arria® 10, Arria® V, Intel® Arria® 10 SoC, Arria® V SoC

Cyclone Series: Cyclone® IV, Cyclone® V, Cyclone® V SoC

MAX Series: Intel® MAX® 10, MAX® V

Stratix Series: Stratix® IV, Stratix® V


The DCD’s DBLCD32 core is a fully configurable, universal LCD/TFT display controller. It supports a wide range of resolution and enables both, horizontal and vertical synchronization parameters setup. The display’s pixel clock can be generated by an internal pixel clock divider based on the bus clock, or delivered to the core by a dedicated pin. Additionally there is a possibility of using an externally generated pixel clock. Polarization of the generated pixel clock, as well as synchronization signals, is configurable. The DBLCD32 has a DMA capable master interface, which can be used to access a framebuffer placed directly in a system memory. Embedded DMA controller has configurable FIFO to store pixels data, which increases system throughput and performance. Transmission on the master interface is burst oriented and there is a possibility of defining the burst size limit. Data fetched by the DMA interface can be translated to 24-bits RGB signals, depending on the selected color mode.


  • 24-bit RGB interface; Configurable display resolution; Configurable horizontal sync length and blanking
  • Configurable vertical sync length and blanking; Configurable RGB signals polarization; Configurable pixel clock polarization
  • Internal pixel clock divider; Different pixel clock modes; DMA capable interface; Configurable DMA FIFO; Configurable burst size limit
  • AHB bus interface(32-bit); 24-bit True Color mode support; 16-bit (5-6-5) High Color mode support; 8-bit Indexed Color mode support
  • 32-bit True Color mode support (one byte ignored); Pixel palette RAM; Page flipping support; Programmable interrupts; Big and little - endian support

Device Utilization and Performance

Provided in the product datasheet.

Getting Started

For additional information, contact Digital Core Design at: Wroclawska 94 41-902 Bytom Poland Tel: +48 32 2828266 Fax: +48 32 2827437 E-mail: aleads@dcd.pl Website: http://www.digitalcoredesign.com

IP Quality Metrics

Year IP was first released2010
Latest version of Quartus supported15.1
Altera Customer Use
IP has been successfully implemented in production with at least one customerY

Customer deliverables include the following:

  • Design file (encrypted source code or post-synthesis netlist)
  • Simulation model for ModelSim Altera edition
  • Timing and/or layout constraints
  • Testbench or design example
  • Documentation with revision control
  • Readme file
Any additional customer deliverables provided with IP
Parameterization GUI allowing end user to configure IPY
IP core is enabled for OpenCore Plus SupportY
Source language
Verilog; VHDL
Testbench languageVerilog; VHDL
Software drivers providedY
Driver OS supportTBD
User InterfaceAXI; Avalon-MM
IP-XACT Metadata includedN
Simulators supportedModelSim
Hardware validated Y. Altera Board Name DE1, DE2
Industry standard compliance testing performed
If No, is it planned?Y
IP has undergone interoperability testing
Interoperability reports available  N

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