BCM7452 ? avc/mpeg-2/vc-1 hd decode/s d display system-on-a-chip so lution for satellite, ip, cable, and watch-and-record dvr avc/mpeg-2/vc-1 platform example ? advanced hd avc/mpeg-2/vc-1 decoder ? h.264/avc main and high profile to level 4.1 ? vc-1 simple, main, and advanced profile @ level 3 ? mpeg4 part 2, divx ? 3.11, 4.x, 5.x ? hd mpeg-2 and sd mpeg-2 ? mpeg still-picture decode ? advanced audio processor supporting the following: ? aac lc, aac lc+sbr level 2, aac+ level 2 ? dolby ? digital, dol by digital plus ? mpeg i layers 1, 2, and 3 (mp3) ? windows media ? audio ? one pair of on-chip ster eo high-fidelity audio dacs ? 3d srs audio support ? one i 2 s input port and one i 2 s output port ? spdif output ? advanced 2d-effects graphic engine ? studio quality text and graphics at hd resolution ? supports multiple layers and windows ? digital noise reduction (dnr) ? reduces mpeg artifacts including block noise reduction ? reduces mosquito noise ? motion-adaptive deinterlacer with reverse 3:2/2:2 pulldown ? letterbox detection ? multiple simultaneous, independent dvr channels ? opencable? ready with on-chip mpod support ? 300-mhz mips32 ? /16e class processor ? 64-bit ddr dram controller ? 32-bit for sd avc/vc-1 decode ? sd analog video encoder ? ntsc-m, ntsc-j, pal-bdghin, pal-m, pal-nc analog outputs ? 480i/480p/576i/576p out put formats ? component rgb or yprpb output ? macrovision ? 7.1 support ? scart 1 and 2 ? component, s-video, and composite via six on-chip v-dacs ? vbi encoders for cc/ttx with nabts/cgmsa/wss/gemstar ? standards and dedicated ttx sideband ? itu-r-656 input and output ports ? hdmi 1.1/dvi 1.0 mac and phy with hdcp 1.1 ? broadcom security processor ? aes/1des/3des/css/cprm/dtcp copy protection ? mpeg-2/directv/dvb/arib data transport demux with 1des/3des/dvb/multi 2/aes descramblers ? v.92-capable soft modem with in tegrated silab si305x system side device ? 3.3v 33-mhz pci 2.2 ? dual usb 2.0 host controller with dual-port transceiver ? additional independent usb 1.1 host controller ? ethernet mac and phy ? dual smart card support features features (cont.) audio out rf mod hdmi/dvi out 8/16 mb flash ir i/f cable in stereo audio out ts i n bcm3510 qam/vsb demod s/pdif out s/pdif out ntsc pa l video video out ypbpr out comp. video hdmi out 10/100 ethernet ddr1 x32/64 64/128 mb front panel i/f dual usb 2.0 power bcm3420 opencable ? cablecard ? us b 2. 0 eth e rn et BCM7452 450 dmips mpeg-2 hd/sd avc, vc-1
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 ? 2006 by broadcom corporation. all rights reserved. 7452-pb00-r 12/20/06 broadcom ? , the pulse logo, connecting everything ? , and the connecting everything logo are among the trademarks of broadcom corpora tion and/or its affiliates in the un ited states, certain other countries and/or the eu. any other trademarks or trade na mes mentioned are the property of their respective owners. BCM7452 block diagram the BCM7452 is a high-defi nition satellite, cable, and ip set-top box dvr solution offering integrated avc (h. 264/mpeg-4 part 10), mpeg-4 part 2, mpeg-2, divx (3.11, 4.11, 5x), and vc-1 video decoding technology. it combines a data transport processor, high-definition/st andard-definition avc/mpeg-2/vc-1 video decoder, adva nced-audio decoder, 2d graphics processing, high-quality video scaling and motion adaptive deinterlacing, six video dacs, stereo high -fidelity audio dacs, a mips32/mips16e? class cpu, and a peripheral control unit prov iding a variety of set-top box control functions. the mpeg-2 dvb-compliant transport stream/pes parser and demultiplexer is capable of simultan eously processing 256 pids via 128 pid channels in up to five independent ex ternal transport stream inputs and two internal playback channels. all 128 pid channels can be used by the record, audio, and video interface engine (rav e), pcr processing, message filter, and for output via the high-speed transport or remux module. the data transport module can be configured to support eight record channels for pvr functionality and six av channels to interface to audio and video decoders. the transport provides 1des/3de s/dvb/multi2/ae s descrambling support. a memory-to-memory dma security module may be programmed for supporting aes/1d es/3des/css/cprm/cppm /dtcp copy protection algorithms/standards. the BCM7452 features the broadcom secure processor providing secure key generation, management, and protection. an advanced video decoder is featured in the BCM7452 capable of supporting high-definition avc, vc-1, and mpeg-2 streams. avc support is for main- and high-profile to leve l 4.1 for 720p and 1080i high-definition decode support or to level 3.1 for st andard definition streams. avc high profile was added to the fidelity range extensions specifically to address the needs of consumer broadcast and playback applications. tools include additional transform sizes and spatial prediction modes and support for adaptive quantization matrix. the video decoder also supports high-definition vc-1 (advanced-profile level 3, main, and simple profiles) and mpeg-2, main profile at main and high levels. the BCM7452 has an advanced audio processor capable of d ecoding dolby digita l, dolby digital plus, aac 5.1, aac+ level 2, and mpeg 1 layers 1, 2, and 3 with simultaneous pass-through support. 3d srs audio is also supported. available audio outputs are i 2 s, spdif, and one pair of analog outputs. high-quality video and graphics processi ng is integrated, featuring advanced studio quality 2d graphi cs processing. also incl uded are motion-adaptive deinterlacing with 3:2 pulldown, and letterbox detection. digital noise reduction minimizes mosquito noise and mpeg artifacts, including block noise. the BCM7452 has a dual-stream anal og video encoder with macrovision that supports the following output standards: ntsc-m, ntsc-j, pal- bdghin, pal-m, and pal-nc. th e following output formats are supported: composite, s- video, scart, rgb, a nd yprpb component. the following output resolutions are supporte d: 480i, 480p, 576i, and 576p. six output video dacs are available to be shared among the output functions. the BCM7452 also supports output over an hdmi interface. an itu-r-656 output port is also availa ble with teletext sideband. the BCM7452 incorporates a complete mips32?-based microprocessor subsystem, including caches with br idging to memory and a local bus. integrated peripherals include th ree uarts, two iso7816 smart card interfaces, counter/timers, a gpio, a led/ keypad controller, ir receivers, an ir blaster, an integrated soft mode m system side device, and bsc and spi controllers. advanced connectivity fe atures include two usb 2.0/1.1 ports, an additional independent usb 1.1 port, and an ethernet port with mac with integrated phy and alternate me dia independent interface (mii). dual composite ntsc/pal vec with 6 dacs 300-mhz mips32/16e 32ki and 32kd mmu, 4k rac pcm audio engine and dacs bus bridge dram controller rmx x2 iso7816 i/f x2 itu-r-656 decoder usb 2.0 x2 usb 1.1 i 2 s in secure processor o t p r o m soft modem, si305x, ethernet 10 /100base-t video - scalers - compositors - digital noise reduction - delinterlacing ir rx triple uarts dma usb 1.1 advanced 2d graphics display engine multiformat audio processor hd/sd avc / mpeg-2 / mpeg-4/divx video decoder ir in x2 ir tx ir out gpio gpio l r spdif i 2 s out sd video itu-r-656/ttx hdmi gateway services scard mcard itu-r-656 pci 2.2 and flash 64-bit ddr-sdram bsc bsc x4 uartx3 dual usb 2.0 dual pvr engine w/trick modes mpeg-2/dvb transport transport input x5 dcas
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