Graphics Card Features - Sun Microsystems Ultra 80 Service Manual

three-dimensional RAM (3DRAM), the RAM digital-to-analog converter
(RAMDAC), and associated circuitry. The graphics card connects to the system
through the UPA64S expansion connector.
The 3DRAM is a standard dynamic random access memory (DRAM) that includes a
multi-level cache and a separate graphics port. The FBC ASIC provides acceleration
for 2D and 3D imaging primitives. This, combined with the 3DRAM cache and
support for graphics operations, supports a high-performance frame buffer.
The single buffer UPA graphics card accelerates applications-like windowing, 2D
graphics, imaging, and video. The DBZ UPA graphics card adds double-buffering
capabilities and a Z-buffer for accelerating 3D graphics and animation. The single
buffer graphics card uses a 75-MHz frame buffer clock and the DBZ graphics card
uses an 83-MHz clock.
The Elite3D UPA graphics card accelerates applications-like windowing, 3D
graphics, imaging, and video. The Elite3D graphics card uses a 100-MHz frame
buffer clock.
C.1.6.1

Graphics Card Features

Features provided by the UPA graphics card include:
YCC-to-RGB color space conversion for faster video decompression
Contrast stretch support for imaging
Line doubling for interlaced video writes
Consecutive block prefetch for smart frame buffer reads
DDC2B monitor serial communication with EDID default resolution support in
the boot PROM
3DRAM OpenGL stencil function (four planes) support
New RAMDAC support
Single-buffered high-resolution (2.5 Mpixels) supports the following screen
resolutions (DBZ graphics card only):
1920 × 1360 pixel landscape mode (HDTV)
1280 × 2048 pixel portrait mode (medical)
Buffer B addressing for stateless (dumb frame buffer) and video accesses
Simultaneous 8-bit and 24-bit visual support
Multiple hardware color maps
Programmable gamma correction; four-color lookup tables help eliminate color
flashing within an 8-bit window system environment
Texture cache for texture mapping
Acceleration for X11 and XIL graphics libraries
Acceleration for 3D applications (XGL, OpenGL, and Java3D)
3D solids, dynamic shading, rotation, and Z-buffered acceleration
-16 Sun Ultra 80 Service Manual • March 2000