BOARDCOM BCM7317

BCM7317
®
SINGLE-CHIP SATELLITE SET-TOP BOX DECODER
SUMMARY OF BENEFITS
FEATURES
• All-digital satellite receivers
•
•
•
•
•
• Provides a cost-effective solution for direct broadcast satellite
- 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
- NDS ICAM and XTV compliant
- Support for play/record from/to hard disk
MPEG-ATSC compliant audio/video decoders
- [email protected] MPEG2 video decoder
- Decode of MPEG layer-1 and layer-2 audio
- Support for Dolby® AC-3 and compressed PCM
Broadcom Graphics Engine (BGE)
- Supports three graphics, 1 video, and hardware cursor
planes
- 2D video scaling support
- Integrated PAL/NTSC/SECAM encoder
- ITU-656 input support
MIPS32TM CPU core at 242 MHz
- MMU support
- EJTAG debug support
IDE host adapter
- ATA5 command set, Ultra ATA/66 I/F
•
•
•
•
•
•
(DBS) applications
Fully integrated QPSK receiver, MPEG2 A/V decoder, MIPS
CPU and peripherals for a complete set-top box system
- Low-cost solution for next generation Set-Top boxes
Fully integrated USB 2.0 host controller with two-port
physical interface on-chip
PVR capability enables personal viewing and scheduling,
video-on-demand (VOD), and VCR “trick mode” effects on
any video stream
- Encryption ensures copy protection of recorded
programming content
- Simultaneous support for record and playback
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 systems
BCM7317 Single-Chip System Block Diagram
Flash
DDR
16Bit @ 133Mhz
CVBS
BCM3440
Y/C
Si Tuner
Audio L/R
BCM7317
IR Tx
MAFE/
Modem
UHF/IR Rx
FP/Keypad
USB 2.0 I/F
P-ATA I/F
HDD
HDD
OVERVIEW
I/O
(MPC)
ISO 7816
CA I/F
DVB/DES
Descrambler
DISEQ 2.0
CONTROL
QPSK
Demodulator
DVB/ICAM
Transport
with PVR,
OTP
TS Input
HSX Output
PVR Engine
Play/ Record
SW Modem
Interface
DIRECTV
AV
I/F
ROM
Broadcom 2D
Graphics w/
Filters,Scaler
Musicam /
Dolby AC3/
Audio
Decoder
On-Chip
Boot
ROM
8 KB
EJTAG
The BCM7317 is a design based on a unified memory architecture,
(UMA), utilizing a 133-MHz, 16-bit-wide double data rate (DDR)
memory interface for added system performance.
The BCM7317 is a complete single-chip that can decode transport
streams, delivered either via the external BCM3430/40 CMOS Tuner or
via the IDE host I/F from an external hard disk drive (or combination). It
can display the resulting decoded audio and video on a television
monitor connected to the set-top box.
The on-chip video encoder supports NTSC, PAL, and SECAM with
optional Macrovision 7.1 support.
Video
Encoder
4 VDACs
Audio
Engine w/
Stereo DAC
IDE I/F
The BCM7317 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).
DDR SDRAM
Arbiter / DMA
Memory
Control
MPEG 2
Video
Decoder
MIPS32
MMU
8KI / 8KD
FLASH
Composite
S Video
Component
R
L
SPDIF
Peripherals:
IR Rx (2x)/Tx
GPIO’s
USB 2.0
UARTs
Counters PWM
SPI
I2C Master
656
I2S
The BCM7317 includes Broadcom’s advanced 2D graphics engine,
offering true studio quality text and graphics with extremely efficient use
of memory and bandwidth.
The BCM7317 also incorporates a complete industry-standard
MIPS32™-based microprocessor subsystem, including an 8-KB
instruction cache and 8-KB data 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 is supported on the BCM7317,
including UARTs, dual ISO7816 smart cards I/F, GPIO, counters/
timers, IR Tx/Rx, I2C and SPI controllers, and a USB 2.0 host controller
with two ports and integrated physical I/F, saving the cost of an external
physical interface design.
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
© 2004 by BROADCOM CORPORATION. All rights reserved.
7317-PB02-R
03/15/04
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: [email protected]
Web: www.broadcom.com