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BCM7452
(R)
AVC/MPEG-2/VC-1 HD DECODE/SD DISPLAY SYSTEM-ON-A-CHIP SOLUTION FOR SATELLITE, IP, CABLE, AND WATCH-AND-RECORD DVR FEATURES * Advanced HD AVC/MPEG-2/VC-1 decoder
* * * * *
FEATURES (CONT.) * SD analog video encoder
H.264/AVC main and high profile to level 4.1 VC-1 simple, main, and advanced profile @ level 3 MPEG4 Part 2, DivX(R) 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(R) Digital, Dolby Digital Plus * MPEG I layers 1, 2, and 3 (MP3) * Windows Media(R) audio * One pair of on-chip stereo high-fidelity audio DACs * 3D SRS audio support * One I2S input port and one I2S 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
* NTSC-M, NTSC-J, PAL-BDGHIN, PAL-M, PAL-Nc analog outputs * 480i/480p/576i/576p output formats * Component RGB or YPrPb output * Macrovision(R) 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(R) 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/Multi2/AES descramblers side device
* V.92-capable soft modem with integrated SiLab Si305x system * 3.3V 33-MHz PCI 2.2 * Dual USB 2.0 host controller with dual-port transceiver
* Additional independent USB 1.1 host controller
* * * * *
Letterbox detection Multiple simultaneous, independent DVR channels OpenCableTM ready with on-chip MPOD support 300-MHz MIPS32(R)/16e class processor 64-bit DDR DRAM controller * 32-bit for SD AVC/VC-1 decode
* Ethernet MAC and PHY * Dual smart card support
AVC/MPEG-2/VC-1 Platform Example
STEREO AUDIO OUT S/PDIF OUT VIDEO OUT YPbPr OUT Dual USB 2.0 10/100 Ethernet Cable IN
HDMI OUT
Power
Audio Out
HDMI/DVI Out
S/PDIF Out
NTSC PAL Video
Comp. Video
RF Mod
USB 2.0 Ethernet DDR1 x32/64 64/128 MB
BCM7452 450 DMIPS MPEG-2 HD/SD AVC, VC-1
Front Panel I/F
TS In BCM3420
BCM3510 QAM/VSB Demod
8/16 MB Flash
IR I/F
OpenCableTM CableCARDTM
OVERVIEW
64-bit DDR-SDRAM
PCI 2.2 and Flash
USB 2.0 x2
USB 1.1
Bus Bridge 300-MHz MIPS32/16e 32KI and 32KD MMU, 4K RAC
DRAM Controller
Dual USB 2.0
IR RX USB 1.1 IR TX Triple UARTs
IR In x2
IR Out UARTx3 GPIO
DMA
Secure Processor
R O M
O T P
Advanced 2D Graphics Display Engine
ITU-R-656 I2S In DCAS SCARD MCARD Transport Input x5
ITU-R-656 Decoder
Video - Scalers - Compositors - Digital noise reduction - Delinterlacing
Multiformat Audio Processor
GPIO
PCM Audio Engine and DACs
L R SPDIF I2S Out
MPEG-2/DVB Transport
Dual PVR Engine w/Trick Modes
HD/SD AVC/MPEG-2/ MPEG-4/DivX Video Decoder
Soft Modem, Si305X, Ethernet 10/100BASE-T BSC
Dual Composite NTSC/PAL VEC with 6 DACs
SD Video ITU-R-656/TTX HDMI
ISO7816 I/F x2
RMX x2
Gateway Services
BSC x4
BCM7452 Block Diagram
The BCM7452 is a high-definition 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/standard-definition AVC/MPEG-2/VC-1 video decoder, advanced-audio decoder, 2D graphics processing, high-quality video scaling and motion adaptive deinterlacing, six video DACs, stereo high-fidelity audio DACs, a MIPS32/MIPS16eTM class CPU, and a peripheral control unit providing a variety of set-top box control functions. The MPEG-2 DVB-compliant transport stream/PES parser and demultiplexer is capable of simultaneously processing 256 PIDs via 128 PID channels in up to five independent external transport stream inputs and two internal playback channels. All 128 PID channels can be used by the record, audio, and video interface engine (RAVE), 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/3DES/DVB/Multi2/AES descrambling support. A memory-to-memory DMA security module may be programmed for supporting AES/1DES/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 level 4.1 for 720p and 1080i high-definition decode support or to level 3.1 for standard 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 decoding Dolby Digital, 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 I2S, SPDIF, and one pair of analog outputs. High-quality video and graphics processing is integrated, featuring advanced studio quality 2D graphics processing. Also included 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 analog video encoder with Macrovision that supports the following output standards: NTSC-M, NTSC-J, PALBDGHIN, PAL-M, and PAL-Nc. The following output formats are supported: composite, S-Video, SCART, RGB, and YPrPb component. The following output resolutions are supported: 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 available with teletext sideband. The BCM7452 incorporates a complete MIPS32TM-based microprocessor subsystem, including caches with bridging to memory and a local bus. Integrated peripherals include three UARTS, two ISO7816 smart card interfaces, counter/timers, a GPIO, a LED/keypad controller, IR receivers, an IR blaster, an integrated soft modem system side device, and BSC and SPI controllers. Advanced connectivity features 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 media independent interface (MII).
Broadcom(R), the pulse logo, Connecting everything(R), and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners.
(R)
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
(c) 2006 by BROADCOM CORPORATION. All rights reserved. 7452-PB00-R 12/20/06
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

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