RIVA128 datasheet(13/77 Pages) STMICROELECTRONICS

13 / 77 page

128-BIT 3D MULTIMEDIA ACCELERATOR

RIVA 128

13/77

• Per-pixel color keying

• Multiple video windows with hardware color

space conversion and filtering

• Planar YUV12 (4:2:0) to/from packed (4:2:2)

conversion for software MPEG acceleration

and H.261 video conferencing applications

• Accelerated playback of industry standard co-

decs including MPEG-1/2, Indeo, Cinepak

3.6

VIDEO PORT

The RIVA 128 Multimedia Accelerator provides

connectivity for video input devices such as Philips

SAA7111A, ITT 3225 and Samsung KS0127

through an ITU-R-656 video input bus to DVD and

MPEG2 decoders through bidirectional media port

functionality.

• Supported

through

VPE

extensions

DirectDraw

• Supports filtered down-scaling and decimation

• Supports real time video capture via Bus Mas-

tering DMA

• Serial interface for decoder control

3.7

DIRECT RGB OUTPUT TO LOW COST

PAL/NTSC ENCODER

The RIVA 128 has also been designed to interface

to a standard PAL or NTSC television via a low

cost TV encoder chip. In PAL or NTSC display

modes the interlaced output is internally flicker-fil-

tered and CCIR/EIA compliant timing reference

signals are generated.

3.8

SUPPORT FOR STANDARDS

• Multimedia support for MS-DOS, Windows

3.11, Windows 95, and Windows NT

• Acceleration for Windows 95 Direct APIs in-

cluding Direct3D, DirectDraw and DirectVideo

• VGA and SVGA: The RIVA 128 has an industry

standard 32-bit VGA core and BIOS support. In

PCI configuration space the VGA can be en-

abled and disabled independently of the GUI.

• Glue-less Accelerated Graphics Port (AGP 1.0)

or PCI 2.1 bus interface

• ITU/CCIR-656 compatible video port

• VESA DDC2B+, DPMS, VBE 2.0 supported

3.9

RESOLUTIONS SUPPORTED

Resolution

BPP

2MByte

4MByte (128-bit)

640x480

120Hz

800x600

120Hz

1024x768

120Hz

1152x864

120Hz

100Hz

1280x1024

100Hz

1600x1200

75Hz

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