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TFT/LCD/MIPI Display Controller and Composition Engine

NEMA®|dc is not just an ordinary display controller, it is a real "Swiss Army Knife" which contains several smart tools and functions to compose multiple graphics and video layers by improving image quality and help to reduce the SoC power consumption.
NEMA®|dc supports powerful composition features, a wide range of display interfaces and advanced proprietary frame-buffer compression technology (TSCTMFB).
The core is designed to lift the workload off the Graphics Processing Unit (GPU) or the host processor (CPU), and minimize the memory bandwidth.
Multiple layers can be scaled, clipped, positioned and composed on the final display by overlaying video, subtitles, graphics, cursors or application windows, with or without transparency.

特色

Programmable display resolutions up to 32Kx32K, including:

VGA, XGA, HD, Full-HD, Quad Full-HD, 4K, 8K

Compressed framebuffer support
Adaptive Sync
Adaptive Brightness
Selective update
Multiple input graphics or video layers
Powerful composition

Alpha blending
Scaling
Programmable size, offset and format per layer
Programmable stride/pitch enabling panning and clipping

RGB to YUV(YCbCr) conversion
Per layer palette
Global or per layer Gamma correction
Dithering for better results on 18-bit displays
Fixed or programmable cursors
Programmable event interrupt request (IRQ)
Display interfaces

MIPI DPI
MIPI DBI-B
OpenLDI, BT.656
Parallel RGB and YUV
3- and 4- beat serial
Two-Phase 12-bit
Programmable HSYNC, VSYNC, DE, pixel clock polarity
3-4 Wire SPI
Serial / Parallel JDI

优势

Power Savings
NEMA®|dc has two smart methods to reduce significantly the system power consumption:
1)TSCTMFB, Think Silicon Frame-buffer compression: A high quality lossy and 4bpp (bits-per-pixel) fixed rate scheme, which performs in real-time and requires minimal hardware. TSCFB yields into a reduction of frame-buffer size/traffic by 400-800%, depending on the color depth. The reduction of graphics memory size due to TSCTMFB enables systems using only internal on-chip memory by eliminating external DDR memory.
2)SSC, Smart Surface Composer: While composing on the-fly surfaces, NEMA®|dc lowers the system bandwidth by eliminating multiple memory read-write cycles and memory volume accesses, compared to a system where the GPU or CPU is entirely in charge of the composition process. SSC yields into a reduction of system bus/memory load by 40-60%, depending on the number and the format of the surfaces.
TSTMFB and SSC combined are up to twenty (x20) times more power efficient than systems with a conventional display controller.

可交付内容

Deliverables include: complete set of synthesis, STA (Static Timing Analysis) scripts, OS drivers for Linux, Android, FreeRTOS, portable bare drivers and Android HWC driver.
Documentation includes: IP manual, integration manual, software-library manual, application notes, demonstration platform, "How To Manual" with bare library application notes including programming descriptions and composition feature enablement.
A reference design systems and demo-sets are available for platforms: Xilinx Zynq, Altera SoCkit.
NEMA®|dc documentation includes the IP Manual, Integration Manual, Software Library Manual including example codes, and Application Notes.

应用

NEMA®|dc is designed as a flexible back-end of the graphics-video path which works perfect in SoCs with GPU or in tandem with the host CPU in GPU-less systems.
The possibility to choose from three different versions of NEMA®|dc makes it a perfect candidate to match the budget and suits applications spanning from ultra HD smart TVs (NEMA®|dc-700), to high-mid-range smartphones (NEMA®|dc-400) down to battery-limited embedded systems with simpler graphics requirements (NEMA®|dc-100).
The Android Hardware Composer (HWC) driver allows NEMA®|dc-700 and NEMA®|dc-400 to act as a surface composer to accelerate graphics requests from the Skia-graphics library, Open Graphics APIs, or any graphics generating application running under the Android system.