STI7200_11 [STMICROELECTRONICS]
Triple display, HDTV set-top box, dual decoder for H.264 and VC-1; 三显示器，高清晰度电视机顶盒，双解码器， H.264和VC- 1
| 型号： | STI7200_11 |
| 厂家： | 
ST |
| 描述： | Triple display, HDTV set-top box, dual decoder for H.264 and VC-1 |
| 文件： | 总4页 (文件大小：68K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STi7200
Triple display, HDTV set-top box, dual decoder for H.264 and VC-1
Data brief
– HD DVD/BD compliant
Features
– DVR capable
■ Single-chip, high-definition STB decoder:
– HDMI/HDCP interface with CEC line
®
– H.264 and Microsoft VC-1 compatible
controller
®
®
– Linux , Windows CE and OS21
compatible ST40 CPU core
– IQI (Image Quality Improvement) support
■ Connectivity:
– Supports NAND flash, NOR flash and
Sflash
– Local memory 2 × DDR2 333 MHz
– Transport filtering and descrambling
– Dual H.264, MPEG-2, VC-1 video decoding
– SVP compliant
– Triple USB 2.0 host controller/PHY
interface
– Digital audio and video auxiliary inputs
– Low-cost modem support
– Dual 100BT ethernet controller, MAC and
MII/RMII interface for external PHY
– Dual serial ATA (SATA)
– High speed synchronous interface (MPX)
to STVi498 cable and DOCSIS front-end
chip
®
– Windows DRM support
– Triple display composition
– Integrated VHF channel 3/4 modulator
– Dual audio decoder, including Windows
®
Media Audio 9 (WMA-9) and WMA-9 Pro
– DVD data retrieval and decryption
MII/RMII for 100BT
Ethernet
Hard
disks
DDR2
SDRAM
Peripheral I/O
and external interrupts
32
32
Stereo
DACs
2×
ST40 core
2×
SATA
Ethernet
2×
IR
Tx/Rx
2×
MAFE
interface
LMI0
MII/RMII
SmartCard
interface
16 K Icache
UDI
PWM
5×
Audio
decoder decoder
Audio
2×
FDMA
3×
USB
2.0
Int. control
2×
DISEqC
4×
8×
MMU
LMI1
ST231
core
ST231
core
ILC
Audio
interfaces
GPIO
UARTs SSCs
32 K Dcache
STBus
Flex VPE
Video decoder
VC-1 (inc WMV-9)
H264/MPEG-2
PTI 1
PTI 2
Display
compositor
mix 1 to 3
2D gamma
blitter
HD disp proc
HD disp proc
DVP
6
ST231
core
TSG DMA in
HDMI
4
EMI EMPI
TSG DMA out
Video decoder
VC-1 (inc WMV-9)
H264/MPEG-2
VHF
mod
Local
HD
Local
SD
Remote
SD
TLTXT
DACs
TLTXT
Clock generator
and system
services
SECTP
6
VHF
DAC
4
ST231
core
DENC
DENC DACs
DACs
Local video
DV
out output (HD)
Local video
output (SD)
Remote video
output (SD)
DV
out
CH 3/4
out
Flash or
companion
chip
TS inputs
February 2011
Doc ID 12876 Rev 2
1/4
www.st.com
4
Description
STi7200
1
Description
The STi7200 is a new generation, high-definition set-top box/DVD decoder chip that
provides very high performance for low-cost HD systems. With enhanced performance over
the STi7109, it includes both Windows Media Video 9 and H.264 video decoders for new,
low bitrate applications. The STi7200 is able to decode two HD programs.
Based on the STBus architecture, this system-on-chip is a full back-end processor for digital
terrestrial, satellite, cable and IP high-definition set-top boxes, compliant with ATSC, SMPTE
VC-1, DVB, DIRECTV, DCII, OpenCable and ARIB BS4 specifications. The STi7200
includes all processing for DVD applications.
2
Applications
The STi7200 demultiplexes, decrypts and decodes HD or SD video streams with associated
multichannel audio. Video is output to three independently formatted displays:
●
●
●
a full resolution display intended for a local HDTV monitor
a downsampled display intended for a VCR or local SDTV
an SD resolution display intended for a remote SDTV monitor
Connection to the main TV or display panel can be analog (RGB/YUV) through HD DACs, or
digital through a copy protected DVI/HDMI. Composite outputs are provided for connection
to local and remote TVs or VCR with Rovi™ or Dwight Cavendish protection.
Audio is output with optional PCM mixing to an S/PDIF interface, dual PCM interface, or
through integrated dual stereo audio DACs.
Digitized analog programs can also be input to the STi7200 for reformatting and display.
The STi7200 includes a graphics rendering and display capability with a 2D graphics
accelerator. A triple display compositor mixes graphics and video with independent
composition for each of the TV and VCR or SDTV outputs. Picture In Picture (PIP) is
supported.
The STi7200 handles up to six external transport streams from different sources.
Four transport stream inputs, two transport stream input/outputs and two transport stream
outputs are supported. Applications include DVR time-shifted viewing of a terrestrial
program, while acquiring an EPG/data stream from a satellite or cable front end.
The transport architecture uncouples the transport packet processing from the transport
packet collection. The input transport streams are stored in SDRAM after PID filtering and
time stamp collection. DMAs fetch data from external memory and inject them to PTIs or
transport stream output ports.
The flexible descrambling engine is compatible with required standards including DVB, DES,
AES and Multi2.
The STi7200 has an ST40-210 CPU for applications and device control. A dual 32-bit DDR2
SDRAM interface provides the required bandwidth for dual HD VC-1/H.264 video decoding,
and for the CPU and the rest of the system.
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Doc ID 12876 Rev 2
STi7200
Revision history
A second memory bus is provided for flash memory, storing resident software, and for
connection of peripherals. This bus also has a high speed synchronous mode that can be
used to exchange data between two STi7200 devices.
A 32-bit MPX initiator (EMI module) and target (EMPI module) interconnect external devices
such as the STVi498.
A Blu-ray disc and hard disk drive (HDD) can be connected through the serial ATA interfaces
(2×). An expansion hard disk drive can be connected through a USB 2.0 port (3×).
For IP-TV and home network applications, the two integrated 100BT Ethernet controllers
with MII/RMII interface can be used for IP delivery and distribution.
The USB or Ethernet interfaces can also be used to connect to a DOCSIS 2.0 CM gateway
for interactive cable applications.
The STi7200 is supported by STMicroelectronics’ STAPI software.
3
Revision history
Table 1.
Date
Document revision history
Revision
Changes
07-Dec-2006
1
Initial release.
Minor updates to formatting and spelling.
Content revised and simplified.
Disclaimer page amended.
10-Feb-2011
2
Doc ID 12876 Rev 2
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STi7200
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Doc ID 12876 Rev 2
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