BCM7328 ® SINGLE-CHIP SATELLITE SET-TOP BOX DECODER SUMMARY OF BENEFITS FEATURES • Dual On-Chip 8PSK/ Turbo Code Demodulators • • • • • Provides a cost-effective solution for Dual Decode, Direct - 1-45 Mbaud variable rate receiver - DVB/DIRECTV®/Digicipher II Compliant FEC Decoder Data Transport Processor - Support for DirecTV and MPEG Transport Streams - DES/DVB Descrambler - Support for 64 PIDs and 64 Section Filters - Support for Play/ Record from/to Hard Disk Dual MPEG-ATSC Compliant Audio/Video Decoders - MP@ML MPEG2 Video Decoder - Dual decode of MPEG Layer 1 & Layer 2 Audio - Support for Dolby AC-3 and Compressed PCM Dual Broadcom Graphics Engine (BGE) - Supports 3 Graphics, 1 x Video & H/W Cursor planes - 2D Video Scaling support - Integrated PAL/NTSC/SECAM Encoder MIPS64TM CPU Core @ 250 MHz - MMU - EJTAG Debug Interface • • • • Broadcast Satellite (DBS) applications Fully Integrated Dual 8PSK/ TC Receivers, MPEG2 A/V decoder, MIPS CPU and peripherals for complete Set-Top Box system - Simultaneously supports two TVs with independent programming and On-Screen Graphics displays Advanced 2D graphics system allows applications such as internet browsers and electronic program guides to deliver studio quality text and graphics on television monitors Broadcom developed device drivers enable rapid software development cycle with support of industry-standard operation systems Industry leading Third-Party Operating Systems, Tool chains and Middleware supported, including OpenTV, NDS’s XTV PVR system BCM7328 Single-Chip System Block Diagram Flash DDR CVBS, Y/C BCM3440 RGB Si Tuner RF 3/4 BCM7328 BCM3440 Si Tuner Audio L/R IR Tx MAFE/ Modem UHF/IR Rx FP/Keypad OVERVIEW 16-bit DDR 8PSK/TC Receiver ROM/Flash Bus Bridge Memory Controller 8PSK/TC Receiver DMA 250-300 MHZ MIPS64 Micro 16K I & 16K D MPEG2/DSS Transport Processor with DVB & DES Descramblers On-Chip Boot ROM 8 KB IR Tx/Rx Keypad Serial Ports Dual Advanced 2D Graphics & Video Display Engine Dual Dolby & MPEG Audio Decoder Dual SD MPEG -2 Video Decoder Modem Interface I/O Composite Video Encoder and DACs PCM Audio Engine & DACS Analog Video1 Analog Video2 RF 3/4 I2C/PCM SPDIF EJTAG ISO7816 I/F The BCM7328 is the second-generation of Broadcom’s Dual Decode/ Dual TV set-top box system on a chip. The BCM7328 integrates Broadcom’s field-proven BCM4500 8PSK/TC Demodulator technology, as well as technology derived from Broadcom’s cable products (such as the BCM7115 cable single-chip). The BCM7328 memory subsystem is a unified memory architecture, (UMA), utilizing a 150-MHz Double Data Rate (DDR) memory interface that supports either 16-bit or 32-bit wide, depending on required system performance. The BCM7328 single chip can decode two transport streams, delivered either via the external dual BCM3440 CMOS Tuners and display the resulting decoded audio and video on two independent TV monitors, connected to the set-top box. A channel 3-4 RF modulator is also included on-chip. The video encoder supports NTSC, PAL & SECAM with optional Macrovision 7.1. The BCM7328 includes dual implementations of Broadcom’s advanced 2D graphics engine, offering true studio quality text and graphics with extremely efficient use of memory and bandwidth The BCM7328 also incorporates a complete MIPS64-based microprocessor subsystem, including 16-KB Instruction cache, 16-KB Data cache and 2-KB Read Ahead cache. The CPU runs at 250 offering over 250-DMIPS rating. 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. ® BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 © 2003 by BROADCOM CORPORATION. All rights reserved. 7328-PB00-R 12/29/03 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: [email protected] Web: www.broadcom.com