BCM7031 [ETC]
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| 型号： | BCM7031 |
| 厂家： | 
ETC |
| 描述： |
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| 文件： | 总2页 (文件大小：42K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BCM7031R
PRODUCT
Brief
HIGH-DEFINITION VIDEO PCI SUBSYSTEM WITH 2D/3D GRAPHICS
B C M 7 0 3 1 F E A T U R E S
S U M M A R Y O F B E N E F I T S
ATSC-compliant, All-Format MP@HL MPEG-2 video
dual decoder with Personal Video Recording feature
• Dual channel decode with simultaneous standard-definition
(SD) display of each channel content
• Single channel high-definition (HD) decode with simultaneous
display of both HD and scaled SD content
Provides a cost-effective solution for high-definition
and standard-definition video and graphics systems
common to cable and satellite applications.
PVR capability enables personal viewing and
scheduling, Video-On-Demand (VOD), and VCR
"trick mode" effects on any video stream.
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• Encryption ensures copy protection of recorded programming
content
• Simultaneous dual record, dual playback Personal Video
Recording (PVR) with encryption
• Six on-chip video DACs
Includes simultaneous high-definition and standard-
definition analog output for watch and record
capability.
Advanced 2D-graphics system allows applications
such as internet browsers and electronic program
guides to deliver studio-quality text and graphics on
television monitors.
Full featured 3D-graphics engine allows for multi-
player gaming and 3D internet website acceleration.
PCI interface allows for direct connection of cost-
effective SuperI/O devices.
High-performance DMA capability can be used for
cable modem traffic.
Broadcom-developed device drivers enable rapid-
software development cycle.
Supports DVS POD requirements.
PCI interface provides bi-endian support and up to
3 bus masters for maximum system design flexibility.
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Dolby Digital (AC-3)/MPEG multichannel audio
decoder with SPDIF output
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• Dual I2S bi-directional audio ports
Stereo audio DACs
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Fully featured 3D graphics HW accelerator
Advanced 2D/3D-effects graphics engine
• Studio-quality text and graphics at HD resolution
• Supports multiple layers and windows
NTSC/PAL analog video decoder
NTSC/PAL/HD video encoder
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PCI 2.1 compliant
POD support including DVS 213 DES descrambler
DVT and DC2-compliant transport demultiplexer with
DVB, DES, and Multi2 descramblers
Simultaneous CCIR-656 inputs and outputs
Support for 64 PIDs and 64 section filters
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BCM7031 Advanced Video, Graphics, and Audio Subsystem
BCM7501
DVI
MIPS or SH4 CPU
Dual Smartcard
Bridge Chip
SDRAM
BCM4413
HPNA/V.90
10/100 BASE-TX
Analog
NTSC/PAL
Video
Audio
Demod
SDRAM
Video
USB
Dual Video
Out
BCM7031
BCM3415
CMOS
Tuner
IDE
Controller
Video 1
OOB
Analog Audio
SPDIF Audio
I2S Interfaces
MPEG
x2
BCM3250
Dual QAMLink®
QPSK OOB
QPSK transmitter
DOCSIS 1.1
DAVIC 1.2
Duplex
Filter/
Splitter
Fully Featured
3D Graphics Engine
Upstream Data
1394 Interface
BCM3415
CMOS
Tuner
Data
PCI Bus
VoIP DSP
Video 2
BCM3415
CMOS
Tuner
IR
BCM3125
Transceiver
Interface
PCMCIA POD I/F
B C M 7 0 3 1
O V E R V I E W
PCI
64-bit SDRAM
Dual
Composite
Video
Encoder
and
PCI
Interface
SDRAM
Controller
Analog
Video
In
Composite Video
A/D
Decoder and TBC
Graphics and
Video
Display Engine
HD Display and
Format Conversion
HD/SD analog video
SD analog video
HD DACs
DMA Engine
Video Scaler
PCM
Audio
HD/Dual SD
MPEG-2 Video
Decoder
PCM
Audio In
Dual I2S
Paxel
2D/3D
Graphics
Processor
Dolby and
MPEG
Audio
3D
Graphics
Engine
Stereo
Audio
DACs
Dual
PVR
Engine
L
Decoder
In band 0
In band 1
In band 2
MPEG-2 Transport
Processor with DVB
Descrambler
R
SPDIF
SPDIF
Audio Out
Dual ISO 7861 Interface
The BCM7031 Advanced High-Definition, Video-Graphics
Subsystem supports the requirements of television and set-top
box systems that require high-definition or standard-definition
decoding of MPEG-2 streams with simultaneous high-definition
and standard-definition outputs. For systems that require only
standard-definition output, a reduced-memory mode substantially
reduces the amount of memory needed for the video-
decompression process. The video decoder also supports multiple
stream standard-definition decoding, providing both tiled video
and PIP capability.
and two ISO7816 smart card interfaces. The DES descrambler
complies with the DVS 213 requirements for the transport stream
POD interface.
The transport engine is designed to support personal video
recorder (PVR) functions, allowing the set-top box to support
VCR-like functions, such as fast forward/reverse, pause, and
record. The BCM7031 supports up to two record and two
playback streams simultaneously, with optional 3DES
encryption/decryption.
The BCM7031 graphics are based on Broadcom’s advanced
video/graphics technology that allows studio-quality text and
graphics to be displayed on television-based systems. The
graphics compositing engine allows for many windows of
graphics and video to be layered with blending and antialiasing,
creating rich, high-quality, display capability.
The BCM7031 decodes both Dolby Digital (AC-3) and MPEG
multichannel compressed streams. Audio output is provided over
stereo DACs or SPDIF.
A PCM audio engine mixes separate audio streams generated
from the MPEG2/Dolby audio decompression circuitry, PCM
audio generated from the CPU, or PCM audio input via a
baseband audio input. These streams can be resampled and
mixed together with volume control.
An on-board vector RISC processor provides 2D graphics, anti-
aliased text, and 3D effects.
A MPEG-2 DVB/DC2-compliant transport demux with three
transport stream inputs has advanced section filtering capability,
DVB descrambler, DES descrambler with ECB/CCB capability,
The BCM7031 is an ideal solution where maximum system design
flexibility and performance is key. Its bi-endian architecture and full
DMA capability work with any CPU and PCI system configuration.
Broadcom® and the pulse logo® are registered trademarks of Broadcom Corporation and/or
its subsidiaries in the United States and certain other countries. Dolby® is a registered
trademark of of Dolby Laboratories Licensing Corporation.
For more information please contact us at:
Phone: 949-450-8700, FAX: 949-450-8710
Email: info@broadcom.com
Visit our web site at: www.broadcom.com
© 2001 BROADCOM CORPORATION
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
7031-PB04-R-10.12.01
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