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BCM7315 Datasheet(PDF) 2 Page - Broadcom Corporation.

Part No. BCM7315
Description  SINGLE-CHIP SATELLITE SET-TOP BOX DECODER
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Maker  BOARDCOM [Broadcom Corporation.]
Homepage  http://www.broadcom.com
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BCM7315 Datasheet(HTML) 2 Page - Broadcom Corporation.

   
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O V ERVI EW
®
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
© 2003 by BROADCOM CORPORATION. All rights reserved.
7315-PB02-R
12/29/03
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.
The BCM7315 is a satellite set-top box system on a single chip,
integrating Broadcom’s field-proven BCM4500 QPSK Demodulator
technology, as well as technology derived from Broadcom’s existing
cable products (such as the BCM7115 cable STB single-chip device).
The BCM7315 is designed based on a unified memory architecture,
(UMA), utilizing 16-bit wide double data rate (DDR) memory for added
performance.
The BCM7315 is a complete single chip that can decode transport
streams, delivered either via the external BCM3440 CMOS tuner or via
the IDE host I/F from an external hard disk drive, (or combination), and
display the resulting decoded audio and video on a television monitor
connected to the set-top box. A channel 3–4 RF modulator is also
included on-chip to further reduce system design complexity. The on-
chip video encoder supports NTSC/PAL and SECAM with optional
Macrovision 7.1 on the output.
The BCM7315 includes Broadcom’s advanced 2D graphics engine,
offering true studio quality text and graphics with extremely efficient use
of memory and bandwidth
The BCM7315 also incorporates a complete industry standard
MIPS32™ based microprocessor subsystem, including 8-KB Instruction
cache, 8-KB Data cache and 2-KB read ahead cache. Internal bridges to
memory and local busses provide support for external peripherals on-
chip as well as off-chip. A full range of peripheral devices are supported
on the BCM7315, including UARTs, dual ISO7816 smart card I/Fs,
GPIOs, counters/ timers, IR Tx/Rx, I2C and SPI controllers.
XPORT
SD-MPEG-2
Video
Decoder
Graphics
Video
Encoder
Video
IDE
Host
IFC
DACs (4)
Audio
RF Modulator
DACs
MPEG/Dolby
Audio
Decoder
EJTAG
DDR-SDRAM
Controller
Peripheral
Test
ICE
16-bit DDR-DRAM
IR/uART
SPI/I2C/GPIO/PWM
SMARTCARD
MIPS MMU (175 MHz)
BME SDRAM Clients:
Xport, MPEG, Graphics
Audio, DMA
ISB DMA Clients:
IDE, USB, EBI
QPSK
Receiver
USB 1.1
Host
Controller
EBI
SRAM
ROM
(FLASH)
Satellite
Access/
ICAM
SPDIF
MPEG Xport
IDE/
ITU-R656
I2S
Video
Composite
S-Video
Audio
Left _p/n
Right _p/n
Channel 3/4
HSX
Host


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