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7309 PVR
Инструкция по эксплуатации Страница: 2

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OVERVIEW

Phone: 949-450-8700

Fax: 949-926-5203

E-mail: info@broadcom.com

Web: www.broadcom.com

BROADCOM CORPORATION

16215 Alton Parkway, P.O. Box 57013

Irvine, California 92619-7013

7309-PB00-R 02/26/07

Broadcom

, the pulse logo, Connecting everything

, 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.

BCM7309 Internal Block Diagram

The BCM7309 is Broadcom’s third-generation set-top box system-on-a-

chip design. It provides unparalleled features and performance for the

cost sensitive low end cable set-top box market.

The BCM7309 integrates existing volume production technologies from

Broadcom’s cable and digital TV market expertise.

The BCM7309 design is based on a unified memory architecture

(UMA), utilizing a 150 MHz, 16-bit wide Double Data Rate (DDR)

memory interface for added performance.

The BCM7309 offers very high levels of integration for reduced system

BOM, including RF 3/4 Modulator, USB 2.0 Host + Physical I/F, Stereo

Audio DACs, Video Line Drivers, VCXOs and an internal 1.3V voltage

regulator. For further cost saving, the BCM7309 integrates Silicon Labs’

Si305x SSD device for SW modem applications.

The on-chip video encoder supports NTSC, PAL, and SECAM with

optional Macrovision 7.1 support.

The BCM7309 includes a complete industry-standard MIPS32

microprocessor subsystem, including 32-KB instruction and data caches.

The CPU operates at 266 MHz, offering over 340-DMIPS rating. The

architecture also includes the MIPS16e Application-Specific Extension

for code compaction.

A full range of peripheral features is supported, including UARTs, dual

ISO 7816 smart cards I/F, GPIO, counters/timers, IR Tx/Rx, I

C, and

SPI controllers.

SECURITY MODULE WITH OTP

MPEG 2 VIDEO

DECODER

VIDEO

ENCODER

6 DACs

BROADCOM

2D GRAPHICS WITH

FILTERS, SCALER

CONDITIONAL ACCESS MODULE

ARBITER/DMA

MEMORY CONTROLLER

USB 2.0 HOST CONTROLLER

2 x PORTS WITH PHY

TS INPUT

DVB

TRANSPORT

DVB/DES

DESCRAMBLER

AUDIO

DECODER

MUSICAM/

DOLBY AC3

AUDIO ENGINE

MODULATOR

AUDIO

STEREO

DACs

SW MODEM

SiLABSDAA I/F

EJTAG

MODULE

MIPS32/16e

266 MHz

32KI/32 KD

ON-CHIP

BOOT ROM

8 KB

PERIPHERALS BLOCK

IR Rx (2x) / Tx

Counters

SPI

GPIOs

PWM

C Master

RGB

RF 3/4

DUAL ISO 7816

R/L SPDIF

S-VIDEO

COMPOSITE

DDR 16-BIT I/F

FLASH / IO IF

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