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| BCM7021 (R) HIGH-DEFINITION VIDEO PCI SUBSYSTEM WITH 2D GRAPHICS FEATURES * ATSC-compliant, All-Format MP@HL MPEG-2 video SUMMARY OF BENEFITS * Provides a cost-effective solution for high-definition and decoder * Decodes up to four MP@ML video streams * Standard-definition output with reduced memory requirements * Simultaneous analog high-definition/standard-definition output * Dolby Digital (AC-3)/MPEG multichannel audio decoder with SPDIF output * Dual I2S bidirectional audio ports * Stereo audio DACs * * * * * * * Advanced 2D/3D-effects graphics engine * Studio-quality text and graphics at HD resolution * Supports multiple layers and windows * NTSC analog video decoder * NTSC/PAL/HD video encoder * PCI 2.1 compliant * POD support including DVS 213 DES descrambler * DVB and DC2-compliant transport demux with DVB and DES descramblers * * PCI interface provides bi-endian support and up to 3 bus masters for maximum system design flexibility. SuperI/O devices standard-definition video and graphics systems common to cable and satellite applications. * Includes standard definition with reduced memory mode 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 3D effects create studio-quality screen transitions and add a whole new dimension to electronic program guides. Personal video recorder capability supports VCR-like functions via a hard disk. High-performance DMA capability can be used for cable modem traffic Broadcom-developed device drivers enable rapid software development cycle Supports DVS POD requirements * Simultaneous CCIR-656 inputs and outputs * Support for PIDs and 64 section filters * PCI interface allows for direct connection of cost-effective BCM7021 Advanced Video, Graphics, and Audio Subsystem Dual Smart Card Ch3/4 RF Out S-Video Comp-Vid RGB In/Out YCrCb L/R Audio In/Out SPDIF Audio RJ11 DVI DAA BCM4100 Video Condition ISO 7816 Analog video BCM7501 10/100 BaseTx BCM7021 HD Video/Graphics Rx1 BCM4413 HPNA/V.90 PCI Bus Ethernet MAC/PHY PCI Slot Video Data To Cable Dual Tuner with Diplex filter OOB Upstream BCM3250 Dual QAMlink (R) QPSK OOB QPSK transmitter DOCSIS 1.1 DAVIC 1.2 VoIP DSP BCM7014 Graphics Engine with NTSC Encoder / Decoder/ System Controller BCM7010 MPEG A/V, Transport and Audio DACs SDRAM SDRAM Bridge Chip USB RS-232 Rx2 PCI Bus Rx3 CXD3204R IEEE1394 1394 (dual) MIPS CPU Printer IDE PCMCIA POD I/F IR remote and keyboard OVERVIEW PCI 64-bit SDRAM Analog Video In Composite Video A/D Decoder and TBC PCI Interface SDRAM Controller DMA Engine Video Scaler Graphics and Video Display Engine HD Display and Format Conversion Dual Composite Video Encoder and HD DACs HD/SD analog video SD analog video HD/Dual SD MPEG-2 Video Decoder In band 0 In band 1 In band 2 MPEG-2 Transport Processor with DVB Descrambler Dual PVR Engine Paxel 2D/3D Graphics Processor Dolby and MPEG Audio Decoder PCM Audio Stereo Audio DACs PCM Audio In Dual I2S L R SPDIF Audio Out SPDIF Dual ISO 7861 Interface The BCM7021 Advanced High-Definition Video and 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 standarddefinition outputs. For systems that require only standard-definition output, a reduced-memory mode substantially reduces the amount of memory needed for the video decompressions process. The video decoder also supports multiple stream standard-definition decoding, providing both tiled video and PIP capability. The BCM7021 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 high-quality, rich display capability. An on-board vector RISC processor provides 2D graphics, antialiased 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, and two ISO7816 smart card interfaces. The DES descrambler is compliant 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 BCM702 1 supp orts up to 2 reco rd a nd 2 p la ybac k stream s simultaneously. The BCM7021 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. The BCM7021 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(R), the pulse logo, and Connecting everything(R) are trademarks of Broadcom Corporation and/ or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the property of their respective owners. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2004 by BROADCOM CORPORATION. All rights reserved. 7021-PB03-R 07/06/04 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com |
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