BCM7100 Datasheet, PDF (2/2 Pages) Broadcom Corporation. – SINGLE CHIP CABLE SET TOP BOX SYSTEM

BCM7100 OVERVIEW
POD ISO 7816
SDRAM (16) I/O (MPC) ROM FLASH SDRAM (16/32)
QAM/Video
Input
Broadcom Front—end
Technology
256 QAM In-Band
Demod with 10-Bit A/D
NTSC Analog
Video Decoder
OOB Input
Out-Of-Band QPSK
Demod with 6-Bit A/D
Upstream
Burst QPSK/QAM
Mod with 10-Bit D/A
POD/CA I/F
DVB and DES
Descrambler
DAVIC MAC
SDRAM
Controller
MPEG 2 / DC2
Video
Decoder
IB/OOB
DC2/DVB
Transport
MUSICAM/
Dolby AC3
Audio Decoder
MIPS32
Microprocessor
Arbiter/
Memory
Control
Broadcom 2D
Graphics
with
Filters, Scaler
Peripherals:
IR RX/TX
IRDA
UART (X3)
Counters (X3)
SPI & IIC Master
GPIO
LED
Keypad
Paxel Vector
RISC
Accelerator
NTSC/PAL
Video Encoder
with Triple DAC
Composite
S Video
PCM Audio
Engine with
Stereo DAC
R
L
SPDIF
PCM Audio
The BCM7100 is a cable set-top box system on a single chip,
integrating Broadcom’s field-proven BCM3120 cable transceiver
technology, BCM7010 MPEG/AC-3 decoder technology,
BCM7014 advanced 2D/3D graphics and system integration
technology, BCM3310 MIPS microprocessor technology, all key
interfaces to external memory and I/O, and the necessary
peripherals for set-top box applications.
The BCM7100 integrates Broadcom’s field-proven and industry-
adopted QAMLink technology. This includes an in-band 256-
QAM demodulator with universal FEC supporting a picture IF
input and a 10-bit ADC, a QPSK out-of-band demodulator with
universal FEC and 6-bit ADC, and a burst QPSK/QAM
modulator with universal FEC encoding and 10-bit DAC.
Also included in the BCM7100 is a DAVIC 1.2/1.5 MAC able to
communicate at downstream and upstream rates of up to 3 Mbps.
This DAVIC MAC includes AAL5 and SAR functionality.
The BCM7100 back-end technology is derived from the
BCM7010 MPEG/Dolby Decoder and the BCM7014 Advanced
2D/3D Graphics Controller.
The BCM7100 features an MPEG-2 DVB-compliant transport
demultiplexer with advanced section filtering capability, DVB
descrambler, DES descrambler, MPEG-2/DC2 video decoder,
Dolby AC3/MUSICAM audio decoder with analog and SPDIF
outputs, NTSC/PAL video encoder with Macrovision™ and
analog output, NTSC analog video decoder with comb filtering
and time-base correction. The DES descrambler is compliant
with the DVS 213 requirements for the transport stream POD
interface. In addition, the BCM7100 includes Broadcom’s
advanced 2D/3D graphics engine, offering true studio-quality
text and graphics with extremely efficient use of memory and
bandwidth.
The BCM7100 also incorporates a complete MIPS32-based
microprocessor subsystem, including caches with bridging to
memory and a local bus, where external peripherals can be
attached. Peripherals included in the BCM7100 are UARTs,
two ISO7816 smart card interfaces, counter/timers, GPIO, a
POD interface, keypad, LED, IR Tx/Rx, IRDA, I2C and SPI
controllers.
Broadcom^®, the pulse logo, QAMLink^® and Connecting everything^® are trademarks of
Broadcom Corporation and/or its subsidiaries in the United States and certain other countries.
Dolby^® is a trademark of Dolby Laboratories Licensing Corporation. Macrovision^TM is a trademark
of Macrovision Corporation. All other trademarks 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.
7100-PB08-R-06.13.03
Phone: [phone]
FAX: [phone]
Email: [e-mail]
Web: www.broadcom.com