Toshiba Creates Capricorn Graphic Processors with Altia HMI Tools

In response to the demand for automotive display devices, Toshiba has created the Capricorn family of SoCs. Toshiba Corporation announces the selection of Altia HMI tools for their Capricorn graphic processors. Altia, the industry-leading provider of GUI development tools and consulting services for embedded system development for automotive applications, offers a tool chain with superior graphics capability and tight, deployable code generation. Toshiba’s devices take full advantage of these features.

The Altia DeepScreen Code Generator is available in two targets for Toshiba processor models.

TX4961 Capricorn-M, TX4962 Capricorn-L

  • Fully hardware accelerated using the GA engines
  • Bitmaps including scaling, rotation, transparency, and alpha blending
  • Vector objects including lines, rectangles, and polygons. Outline and fill supported along with alpha blending and scaling/rotation.
  • Text using either monochrome or Freetype (8-bit alpha) rasters
  • Support for 16bpp or 32bpp frame buffers (all bitmaps/fonts are 32bpp regardless of frame buffer depth)
  • Floating point implementation
  • Compile time configurable for vertical synchronization, frame buffer depth, screen size, command list size

TX4964 Capricorn-A
Identical to Capricorn-M/L with following exceptions:

  • No Vector objects except filled rectangles. Rectangles can be scaled, but not rotated. Alpha blending is also supported.
  • Fixed point implementation

These options give automotive engineers the flexibility to choose the right processor for their application. Whichever they choose, they will get excellent Toshiba performance and a custom Altia interface that is designed to take advantage of each chip’s strengths.

The Capricorn-M integrates a powerful 64-bit processor, a floating point unit (FPU), an advanced graphical display controller with dedicated accelerator functions, and a comprehensive range of on-board peripherals and interfaces in a single chip. Supplied in a P-BGA456 package and operating at 240MHz, the Capricorn-M is targeted at high-end instrument cluster and centre console display applications. Each device combines Toshiba’s TX49 64-bit CPU core with graphical processing functions, a quadbus DDR-SDRAM controller, and on-board peripherals and interface blocks. Separate buses for video, graphics and MCU functions insure optimized processing of all key functions simultaneously. Toshiba’s low-power, high-performance TX49/H3 core is based around the 64-bit MIPS instruction set architecture (ISA). The core includes 16kB of instruction cache and 16kB of data cache, and features a completely integrated single-/double-precision FPU coprocessor unit complying with IEEE754.

The Capricorn-A significantly reduces component count and complexity through the integration of a powerful 64-bit processor, an advanced graphical display controller with dedicated accelerator functions, and a comprehensive range of on-board peripherals and interfaces. In addition, Toshiba has also integrated embedded DRAM (eDRAM), eliminating the need for external RAM. This, in turn, helps to reduce component count and board space at the same time as minimizing the need for EMI shielding by lowering the number of external PCB tracks required for a fully operational system. The new SoC features a proprietary low-power, high-performance MIPS-based TX49/L4 64-bit CPU core operating at 120MHz. Graphics processing and display control capabilities are delivered by an integrated graphics display controller (GDC) together with specialized accelerator engines. The Capricorn-A graphics functionality includes dedicated hardware engines for cluster graphics and can deliver up to 32-bit RGBA colors. The graphics accelerators enhance the display output through several handling functions offering high quality anti-aliasing that ensure smooth display of changing graphics. A frame grabber capable of working with a wide variety of input data formats is available for the capture and processing of video images, supporting applications such as rear view monitoring.

More info: Altia