The Digital Blocks DB9000AHB-Lite TFT LCD Controller IP Core interfaces a microprocessor and frame buffer memory via the AMBA 3.0 AHB-Lite Bus V1.0 to a TFT LCD panel. In an FPGA, ASIC, or ASSP device, the microprocessor is typically an ARC, ARM, Intel, MIPS, OpenSPARC, PowerPC, or Tensilica processor and frame buffer memory is either on-chip SRAM memory or larger off-chip SRAM or SDRAM.
Display Controller - LCD / OLED Panels (AHB-Lite Bus)
Overview
Key Features
- Wide range of programmable LCD Panel resolutions:
- Maximum programmable resolutions of 4096x4096
- Horizontal pixel resolutions from 16 to 4096 pixels in 16 pixel increments.
- Example LCD Panel high resolutions:
- 4096x2560, 3840x2160, 2560x2048, 2048x2048, 2048x1536, 1920x1200, 1920x1080, 1680x1050, 1600x1200
- 1600x900, 1440x900, 1366x768, 1280x1024, 1280×768, 1080x1920, 1024x768, 1024x600, 1024x576, 960x540, 800x600, 800x480
- Example LCD Panel medium / small resolutions:
- 640x480, 640x400, 640x240, 640x200, 480x800, 480x640, 480x272
- 480x234, 240x400, 240x320, 240x240, 320x200, 320x240
- Support for 1 Port TFT LCD Panel interfaces:
- 18-bit digital (6-bits/color) & 24-bit digital (8-bits/color)
- Programmable frame buffer bits-per-pixel (bpp) color depths:
- 1, 2, 4, 8 bpp mapped through Color Palette to 18-bit LCD pixel
- 16, 18, bpp directly drive 18-bit LCD pixel
- 24 bpp directly drive 24-bit LCD pixel
- Color Palette RAM to reduce Frame Buffer memory storage requirements and AHB Bus bandwidth:
- 256 entry by 16-bit RAM, implemented as 128 entry by 32-bits
- Loaded via the Slave Bus Interface statically by the microprocessor or the Master Bus Interface dynamically with each frame by the DMA controller
- Programmable Output format support:
- RGB 6:6:6 or 5:6:5 or 5:5:5 on 18-bit digital interface
- RGB 8:8:8 on 24-bit digital interface
- Programmable horizontal timing parameters:
- horizontal front porch, back porch, sync width, pixels-per-line
- horizontal sync polarity
- Programmable vertical timing parameters:
- vertical front porch, back porch, sync width, lines-per-panel
- vertical sync polarity
- Programmable pixel clock:
- pixel clock divider from 1 to 128 of Bus Clock
- pixel clock polarity
- Programmable Data Enable timing signal:
- Derived from horizontal and vertical timing parameters
- display enable polarity
- Three memories:
- 16-word x 32 bit input FIFO, decoupling AHB bus & LCD panel clock rates. Integrated with DMA controller.
- 256-word x 16-bit Color Palette RAM
- 16-word output FIFO
- FIFOs parameterizable in depth and width
- Optional Features: Overlay Windows, Color Space Conversion, Alpha Blending, Hardware Cursor
- Power up and down sequencing support
- 9 sources of internal interrupts with masking control
- Little-endian, big-endian, or Windows CE mode
- Compliance with AMBA 3.0 AHB-Lite Protocol Specification (v 1.0)
- Fully-synchronous, synthesizable Verilog RTL core, with rising-edge clocking, No gated clocks, and No internal tri-states.
Block Diagram

Deliverables
- Verilog or VHDL RTL Source or technology-specific netlist.
- Comprehensive testbench suite with expected results.
- Synthesis scripts.
- Installation & Implementation Guide.
- Technical Reference Manual.
Technical Specifications
Foundry, Node
Chartered, IBM, LSI. OKI, Silterra, SMIC, STMicroelectronics, Tower, TMSC, UMC, Global Foundaries
Maturity
Successful in Company SoC Demo Reference Design & Customer Implementations
Availability
Immediately
Related IPs
- Display Controller – LCD / OLED Panels (Avalon Bus)
- Display Controller – Ultra HD LCD / OLED Panels (AXI4/AXI Bus)
- Display Controller - LCD / OLED Panels (AHB Bus)
- Display Controller - LCD / OLED Panels (AXI Bus)
- Display Controller - LCD / OLED Panels (AXI4 Bus)
- Display Controller – 4K Digital Cinema LCD Panels (AXI4/AXI Bus)