BCM7031r ? high-definition video pci subsystem with 2d/3d graphics BCM7031 advanced video, graphics, and audio subsystem ? atsc-compliant, all-format mp@hl mpeg-2 video dual decoder with personal video recording feature dual-channel decoding with simultaneous standard definition (sd) display of each channel content single channel high-definition (hd) decoding with simultaneous display of both hd and scaled sd content simultaneous dual record, dual playback personal video recording (pvr) with encryption six on-chip video dacs dvd playback dolby digital (ac-3)/mpeg multichannel audio decoder with spdif output dual i 2 s bidirectional audio ports stereo audio dacs 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 pci 2.1 compliant pod support including dvs 213 des descrambler dvt and dc2-compliant transport demultiplexer with dvb, des, and multi2 descramblers simultaneous ccir656 inputs and outputs support for pids and 64 section filters 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. encryption ensures copy protection of recorded programming content 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. fully featured 3d graphics engine allows for multiplayer 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. features summary of benefits 1 3 9 4 in te rfa c e id e c o n tr o ll e r u s b mips cpu a n a lo g a u d i o s p d if a u d i o i 2 s in te rfa c e s dual video out sdram brid g e chip sdram bcm4 4 1 3 hpna/v.90 10 / 10 0 base-t x i r in te rfa c e dual sma rtc a r d bcm7 5 01 dvi sil ic o n t u n e r s i lic o n tu n e r s i lic o n t u n e r b cm3 1 2 5 t ra ns c e iv e r du ple x f i lte r / sp li tte r video a u d i o demod pc mcia p od i/ f bcm3250 dual qamlink qpsk oob qpsk transmitter docsis 1.1 davic 1.2 voip dsp an a log n t sc/pal video ups tre a m da ta o ob vide o 1 m peg x 2 v ide o 2 d a ta pci bus BCM7031 f u lly f e a t u re d 3 d gra p h ic s en g i n e
overview ? phone: 949-450-8700 fax: 949-450-8710 e-mail: info@broadcom.com web: www.broadcom.com broadcom corporation 16215 alton parkway, p.o. box 57013 irvine, california 92619-7013 ? 2004 by broadcom corporation. all rights reserved. 7031-pb07-r 06/30/04 broadcom ? , the pulse logo, and connecting everything ? 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. the BCM7031 advanced high-definition, video graphics subsystem supports the requirements of tele vision 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-d efinition decoding, providing both tiled video and pip capability. the BCM7031 graphics are based on broadcom?s advanced video/ graphics technology that allows studi o-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. an onboard vector risc processor provides 2d graphics, antialiased text, and 3d effects. a mpeg-2 dvb/dc2-compliant transport demux with 3 transport stream inputs has advanced section filtering capability, dvb descrambler, des descrambler with ecb/ccb capability, and 2 iso7816 smart card interfaces. the des descrambler complies with the dvs 213 requirements for the tr ansport stream pod interface. the transport engine is designed to support personal video recording (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 2 record and 2 playback streams simultaneously, with optional 3des encryption/decryption. 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. 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. dvd playback is realizable. the on-chip mpeg video decoder has the ability to parse the pes streams extracted from the program streams found on dvds. ac-3 audio can be decoded to either stereo or dolby prologic and output either to the on-chip dac and/or as pcm to the spdif interface. the audio engine can also output native ac-3 or dts bit streams directly to the spdif. subpicture decoding and rendering are handled by the host cpu and the on-chip graphics processor. with the assistance of software running on an external cpu, a complete dvd playback system can be created. graphics and video display engine hd display and format conversion sdram controller dma engine composite video a/d decoder and tbc video scaler hd/dual sd mpeg-2 video decoder analog video in in band 0 mp eg-2 transp ort proce sso r wi th dvb de scrambler spdif 64-bit sdram pci interface pci du al iso 78 61 interface in band 2 in band 1 spdif audio out dolby and mpeg audio de coder paxe l 2d/3d graphics process or 3d graphics engine hd/sd analog video dua l pvr en gine sd analog video l r au dio ste reo dacs pcm audio in pcm audio dual composite video encoder and hd dacs dual i 2 s
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