BCM7320 ETC, BCM7320 Datasheet - Page 2

• Manufacturer Part Number: BCM7320
• Description: SINGLE CHIP SATELLITESET TOP BOX DECODER
• Manufacturer: ETC

The BCM7320 is a satellite set-top box system on a chip, integrating
Broadcom’s field-proven BCM4500 QPSK demodulator technology, as
well as technology derived from Broadcom’s cable products (such as the
BCM7115 cable single chip device).
The BCM7320 is designed based on a unified memory architecture,
(UMA), utilizing double data rate (DDR) memory, either 16-bit or 32-bit
wide, depending on required performance.
The BCM7320 is the first complete single chip that can decode two
transport streams, delivered either via the external dual BCM3440
CMOS tuners or via the IDE host I/F from an external hard disk drive,
(or combination), and display the resulting decoded audio and video on
two independent TV monitors connected to the set-top box. A channel 3–
Broadcom
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.
7320-PB02-R
®
HSI Data Port
Transport In 1
Transport In 2
Transport In 3
I
, the pulse logo, and Connecting everything
2
S Audio Out
I
2
S Audio In
Satellite 1
Satellite 2
12/29/03
SPDIF
QPSK
QPSK
®
®
Smart Card
are trademarks of Broadcom Corporation and/
ISO7816
(2)
XPORT
(FLASH)
ROM
O V E R V I E W
EBI
MiniTitan
Decoder
Decoder
MPEG
Video
Audio
ADP
EJTAG
Test
4 RF modulator is also included on-chip. The video encoder supports
NTSC/PAL & SECAM with optional Macrovision 7.1.
The BCM7320 includes Broadcom’s advanced 2D graphics engine,
offering true studio quality text and graphics with extremely efficient use
of memory and bandwidth
The BCM7320 also incorporates a complete MIPS64-based
microprocessor subsystem, including 32-KB Instruction cache, 32-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
BCM7320, including UARTs, dual ISO7816 smart card I/F's, GPIO,
counters/ timers, IR Tx/Rx, I2C and SPI controllers.
ICE
Graphics
DDR-SDRAM
DDR-DRAM
Controller
MIPS CPU
Encoders
SECAM
NTSC/
R5K
Video
PAL/
(2)
SPI/I2C/GPIO/PWM
IR/LED/KEY/uART
Peripheral
Modem
DACs
DACs
Video
Audio
V.90
USB
Host
IDE
(4)
I/F
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com
Left / Right
Left / Right
CCIR 656
Controller
Audio 2
Audio 1
Video 1
Video 2
Host
IDE