VxWorks Reference Manual : Libraries
ctB69000Vga - a CHIPS B69000 initialization source module
ctB69000VgaInit( ) - initializes the B69000 chip and loads font in memory.
The 69000 is the first product in the CHIPS family of portable graphics accelerator product line that integrates high performance memory technology for the graphics frame buffer. Based on the proven HiQVideo graphics accelerator core, the 69000 combines state-of-the-art flat panel controller capabilities with low power, high performance integrated memory. The result is the start of a high performance, low power, highly integrated solution for the premier family of portable graphics products.
- High Performance Integrated Memory
- The 69000 is the first member of the HiQVideo family to provide integrated high performance synchronous DRAM (SDRAM) memory technology. Targeted at the mainstream notebook market, the 69000 incorporates 2MB of proprietary integrated SDRAM for the graphics/video frame buffer. The integrated SDRAM memory can support up to 83MHz operation, thus increasing the available memory bandwidth for the graphics subsystem. The result is support for additional high color / high resolution graphics modes combined with real-time video acceleration. This additional bandwidth also allows more flexibility in the other graphics functions intensely used in Graphical User Interfaces (GUIs) such as Microsoft Windows.
- Frame-Based AGP Compatibility
- The 69000 graphics is designed to be used with either 33MHz PCI, or with AGP as a frame-based AGP device, allowing it to be used with the AGP interface provided by the latest core logic chipsets.
- HiQColor TM Technology
- The 69000 integrates CHIPS breakthrough HiQColor technology. Based on the CHIPS proprietary TMED (Temporal Modulated Energy Distribution) algorithm, HiQColor technology is a unique process that allows the display of 16.7 million true colors on STN panels without using Frame Rate Control (FRC) or dithering. In addition, TMED also reduces the need for the panel tuning associated with current FRC-based algorithms. Independent of panel response, the TMED algorithm eliminates all of the flaws (such as shimmer, Mach banding, and other motion artifacts) normally associated with dithering and FRC. Combined with the new fast response, high-contrast, and low-crosstalk technology found in new STN panels, HiQColor technology enables the best display quality and color fidelity previously only available with TFT technology.
- Versatile Panel Support
- The HiQVideo family supports a wide variety of monochrome and color Single- Panel, Single-Drive (SS) and Dual-Panel, Dual Drive (DD), standard and high- resolution, passive STN and active matrix TFT/MIM LCD, and EL panels. With HiQColor technology, up to 256 gray scales are supported on passive STN LCDs. Up to 16.7M different colors can be displayed on passive STN LCDs and up to 16.7M colors on 24- bit active matrix LCDs.
The 69000 offers a variety of programmable features to optimize display quality. Vertical centering and stretching are provided for handling modes with less than 480 lines on 480-line panels. Horizontal and vertical stretching capabilities are also available for both text and graphics modes for optimal display of VGA text and graphics modes on 800x600, 1024x768 and 1280x1024 panels.
- Television NTSC/PAL Flicker Free Output
- The 69000 uses a flicker reduction process which makes text of all fonts and sizes readable by reducing the flicker and jumping lines on the display.
- HiQVideo T Multimedia Support
- The 69000 uses independent multimedia capture and display systems on-chip. The capture system places data in display memory (usually off screen) and the display system places the data in a window on the screen.
- Low Power Consumption
- The 69000 uses a variety of advanced power management features to reduce power consumption of the display sub-system and to extend battery life. Optimized for 3.3V operation, the 69000 internal logic, bus and panel interfaces operate at 3.3V but can tolerate 5V operation.
- Software Compatibility / Flexibility
- The HiQVideo controllers are fully compatible with the VGA standard at both the register and BIOS levels. CHIPS and third-party vendors supply a fully VGA compatible BIOS, end-user utilities and drivers for common application programs.
- Acceleration for All Panels and All Modes
- The 69000 graphics engine is designed to support high performance graphics and video acceleration for all supported display resolutions, display types, and color modes. There is no compromise in performance operating in 8, 16, or 24 bpp color modes allowing true acceleration while displaying up to 16.7M colors.
USAGE This library provides initialization routines to configure CHIPS B69000 (VGA) in alphanumeric mode.
The functions addressed here include:
\i -
Initialization of CHIPS B69000 IC.
USER INTERFACE
STATUS ctB69000VgaInit ( VOID )This routine will initialize the VGA card if present in PCI connector, sets up register set in VGA 3+ mode and loads the font in plane 2.
NONE.
ctB69000VgaInit( ) - initializes the B69000 chip and loads font in memory.
STATUS ctB69000VgaInit ( void )
This routine will initialize the VGA card if present in PCI connector, sets up register set in VGA 3+ mode and loads the font in plane 2.
OK/ERROR