501-4126 (3D)
501-4127 (2D)
July 1997
FFB
DATA SHEET
D
ESCRIPTION
The Fast Frame Buffer (FFB) is a high performance UPA based 24-bit frame buffer with an integer rendering
pipeline for use in demanding graphic applications. It is a UPA slave-only, non-cached, PIO graphics output
device. The FFB is offered as a plug-in module for use with UPA Bus based systems. The FFB is available in
two configurations:
FFB/SB : single buffered (standard)
FFB/DBZ: double buffered with Z buffer (optional).
High Performance UPA Based 24-bit Frame Buffer
F
EATURES
:
Common FFB Family Features
鈥?UPA Bus based slave-only device.
鈥?Hardware acceleration for 鏗乴l, scroll, text, vectors and polygons.
鈥?Relies on CPU for 鏗俹ating point, 3D transform and lighting.
鈥?Full performance, low-cost 24-bit true color is standard.
鈥?8 bit overlays.
鈥?Stereo Ready.
鈥?Single width UPA64S card format (4.1鈥?x 5.8鈥?.
鈥?Support for Xlib, Display Postscript, XIL and XGL.
FFB/SB Features
鈥?Standard Frame buffer. Replaces TGX & SX graphics.
鈥?Full window system and imaging acceleration.
鈥?Limited 3D acceleration.
鈥?24b color buffer + 8b overlay/visual control.
鈥?Up to 1280 x 1024 x 32 @76Hz single buffered display.
鈥?Up to 960 x 680 x 32 single buffered stereo display.
鈥?5MBytes 3-D RAMs + 64bit DAC.
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