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BCM7115
PRODUCT
(R)
Brief
OF BENEFITS
BCM7115 SINGLE-CHIP SET-TOP BOX WITH PVR
BCM7115 FEATURES SUMMARY variable symbol rate * 1024/256/64-QAM J.83 Annex A/B/C receiver supporting ITU-T * QPSK out-of-band receiver and a QPSK to 256-QAM upstream burst modulator * DAVIC 1.2/1.5 MAC * Dolby AC-3/MUSICAM audio decoding * 2D/3D graphics engine * NTSC/PAL video decoder * NTSC/PAL video encoder * BTSC decoder * External bus interface (EBI) serving as local bus MIPS32 * High-performance, 200-MHz RISCcaches processor with 8-KB I and 8-KB D * USB host with dual port (OHCI) devices include * PeripheralV.90 Softmodem IEEE 1394 interface, POD interface, support, LED, UARTs and
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* Integrated front-end and back-end results in the most cost-effective, single-chip, set-top box solution with * * * * *
personal video recording (PVR) PVR engine supports time shifting on a program being viewed and recording of another program simultaneously (watch and record) Support for DAVIC and DCII enable deployment in major cable markets worldwide Industry-leading compact form factor design is enabled by high integration High-performance RISC processor can support today's demanding set-top box operating systems and applications External QAM demodulator support for PVR watch and record
* * * *
IDE controller Personal video recording (PVR) support with IDE controller, 3DES, and dedicated DMA engines Single unified memory architecture Software device drivers supporting multiple operating systems and middlewares BCM7040 MPEG-2 encoder interface
BCM7115 Single-Chip Set-top Box with PVR System Block Diagram
BCM7115
OVERVIEW
POD I/F
ISO7816
I/O (EBI)
ROM
FLASH
DDR SDRAM (16)
Broadcom Front-end Technology
36/44 MHz
or
BB analog
1024/256/64-QAM In-Band Demod with 10-Bit A/D NTSC/PAL Analog Video Dec Out-of-Band QPSK Demod with 6-Bit A/D
POD/CA I/F DVB/DES Descrambler ICAM
Arbiter/Memory Control
PaxelTM Vector RISC Coprocessor Broadcom 2D/3D Graphics with Filters, Scaler BTSC Decoder
RF 3/4 Remod with Sound Trap NTSC/PAL Video Encoder with 4 DACs
RF 3/4 Remod Output Composite S Video RGB
DAVIC 1.2/1.5
MPEG 2/DC2 Video Decoder Musicam/ Dolby AC3/ Audio Decoder
70-130 MHz
0-65 MHz
Power Amp/ Image Reject Filter
Burst QPSK to 256-QAM Mod with 10-Bit A/D
IB/OOB DC2/DVB Transport with PVR CP (3DES)
MIPS32 8-KB I, 8-KB D cache 200 MHz USB Host
PCM Audio Engine with Stereo DAC
R L SPDIF Audio In
Peripherals:
IR RX/TX GPIO IRDA LED UART (X3) Keypad Counters (X3) SPI and IIC Master
transport Remux
FEC SRAM
Transport Ports (1394, External CA)
V.90 Modem I/F
Ultra DMA IDE
DAA/ CODEC
HDD
USB peripherals
The BCM7115 is a single-chip set-top box device that combines the key aspects required for the next generation of set-top boxes including cost-effective single-chip design, personal video recording (PVR), communication via DAVIC or other protocol and support of all major global physical layer standards for worldwide deployment. The BCM7115 includes a 1024/256/64-QAM receiver, an out-of-band QPSK receiver and a QPSK to 256-QAM upstream burst modulator. All major physical layer standards are supported for deployment worldwide. The device includes a complete DAVIC 1.2/1.5 MAC for interactive services. The BCM7115 also includes a standard definition MPEG-2 video decoder and 2D/3D graphics subsystem. This allows for the display of studio-quality text/graphics and 3D effects. The DVB/DCII transport of the device supports PVR. This support includes time shifting on the program being viewed and recording of another program, simultaneously. A full PCM audio engine for mixing sounds into the main audio stream is also on-chip. Outputs include left and right analog and SPDIF.
The BCM7115 also contains a high-performance MIPS32TM RISC processor with 8-KB I cache and 8-KB D cache. The BCM7115 includes a number of peripherals required for next-generation set-top boxes, including USB host, IDE controller for connection to disk drives, POD interface for external conditional access, and a glueless IEEE 1394 interface. The BCM7115 also contains support for the Broadcom V.90 softmodem. Onboard descrambling supports all major conditional access systems and includes 3DES encryption/decryption for PVR. The BCM7115 represents the most integrated, cost-effective settop box single-chip solution incorporating next-generation requirements including support of multiple middlewares and applications. It is built on the previous generation of Broadcom silicon and software to offer a low risk and quick time to market for interactive broadband set-top boxes.
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 are the property of their respective owners.
(R)
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
(c) 2003 by BROADCOM CORPORATION. All rights reserved. 7115-PB05-R 06.13.03
Phone: 949-450-8700 FAX: 949-450-8710 Email: info@broadcom.com Web: www.broadcom.com

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