BCM7317 Datasheet, PDF (2/2 Pages) Broadcom Corporation. – SINGLE-CHIP SATELLITE SET-TOP BOX DECODER

DISEQ 2.0
CONTROL
QPSK
Demodulator
TS Input
HSX Output
SW Modem
Interface
OVERVIEW
ISO 7816
CA I/F
DVB/DES
Descrambler
DVB/ICAM
Transport
with PVR,
OTP
PVR Engine
Play/ Record
IDE I/F
I/O
DDR -
(MPC) _ROM FLASH SDRAM
DIRECTV
AV
I/F
MPEG 2
Video
Decoder
Arbiter / DMA
Memory
Control
Broadcom 2D
Graphics w/
Filters,Scaler
Video
Encoder
4 VDACs
Musicam /
Dolby AC3/
Audio
Decoder
MIPS32
MMU
8KI / 8KD
On-Chip
Boot
ROM
8 KB
EJTAG
Audio
Engine w/
Stereo DAC
Peripherals:
IR Rx (2x)/Tx
GPIO’s
USB 2.0
UARTs
Counters PWM
SPI
I2C Master
656
I2S
Composite
S Video
Component
R
L
SPDIF
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).
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.
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.
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®
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
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Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com