STMICROELECTRONICS STI7200

STi7200
Triple display, HDTV set-top box, dual decoder for H.264 and VC-1
Data Brief
Features
Single-chip, high-definition STB decoder:
– H.264 and Microsoft® VC-1 compatible
– Linux®, Windows® CE and OS21
compatible 350 MHz ST40 CPU core
– supports NAND flash, NOR flash and
Sflash
– local memory 2 x DDR2 333 MHz
– transport filtering and descrambling
– dual H.264, MPEG-2, VC-1 video decoding
– SVP compliant
– 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
DDR2 Hard
SDRAM disks
32
32
ST40 core 350 MHz
16 K Icache
UDI
2x
SATA
LMI0
Int. control
MMU
LMI1
32 K Dcache
Peripheral I/O
and external interrupts
Stereo
DACs
2x
Ethernet
MII/RMII
2x
FDMA
3x
USB
2.0
Connectivity:
– 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
S/PDIF
MII/RMII for 100BT
Ethernet
■
PCM in
PCM out 1
PCM out 2
analog out 1
analog out 2
■
– HD DVD/BD compliant
– DVR capable
– HDMI/HDCP interface with CEC line
controller
– IQI (Image Quality Improvement) support
Audio
interfaces
Audio
decoder
Audio
decoder
ST231
core
ST231
core
2x
2x
MAFE
IR
SmartCard
interface Tx/Rx interface
PWM
2x
4x
5x
8x
DISEqC GPIO ILC UARTs SSCs
Video decoder
VC-1 (inc WMV-9)
H264/MPEG-2
6
TSG DMA in
4
TSG DMA out
SECTP
6
4
TS inputs
December 2006
Clock generator
and system
services
Flex VPE
2D gamma
blitter
DVP
ST231
core
Display
compositor
mix 1 to 3
HD disp proc
HDMI
HD disp proc
EMI EMPI
Video decoder
VC-1 (inc WMV-9)
H264/MPEG-2
Local
HD
VHF
mod
Local
TLTXT
SD
Remote
TLTXT
SD
ST231
core
DACs
VHF
DAC
DENC DACs
DENC DACs
Local video
output (SD)
Remote video
output (SD)
HDMI
PTI 2
DV in
PTI 1
Descrmblr
STBus
DV Local video CH 3/4
out output (HD) out
CD00145658 Rev 1
For further information contact your local STMicroelectronics sales office.
DV
out
Flash or
companion
chip
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Description
1
STi7200
Description
The STi7200 is a new generation, high-definition set-top box/DVD decoder chip, and
provides very high performance for low-cost HD systems. With enhanced performance over
the STx7109, 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 Macrovision 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 architecure 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 a 350 MHz ST40-210 CPU for applications and device control. A dual 32bit 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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Applications
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
(2x). An expansion hard disk drive can be connected through a USB 2.0 port (3x). See
Figure 4.
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, as shown in Figure 1.
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.
Figure 1.
Low-cost HD IP-TV set-top box with hard disk drives
IR
Tx/Rx
2 x 256 Mbit
DDR2
Flash
EMI/MPX
USB 2.0
SATA
7200
MII
Ethernet
RJ45
USB 2.0
STi7200
HDD
USB 2.0
RGB/YPbPr/
PHY
STE101P
HDMI
RS232
SATA
Smart
cards
Expansion HDD
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Applications
Figure 2.
STi7200
HD DOCSIS cable set-top box with HDD
M-cableCARD
interface
IR
Tx/Rx
2 x 256 Mbit
Flash
DDR2
Tuner
STVi498
+
STV0130
Tuner
EMI/MPX
USB 2.0
TS in
1
2
Tuner
USB 2.0
USB 2.0
Diplex
filter
7200
Upstream
SCART
Switch
MII
AV LAN
Server/Client network
HDMI
STi7200
PGA
RJ45
YPrPb/
RGB
PHY
STE101P
SATA
RJ11
Telephone can
be used with VOIP
SATA
RS232
SLIC
Smart
cards
External HDD
Internal HDD
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Figure 3.
Applications
Low-cost satellite TV set-top box
2 x 256 Mbit
Flash
IR
Tx/Rx
DDR2
EMI/MPX
RGB/YPbPr/
HDMI
Transport
streams in
Quad
LNB
STv0900
and
2 x STb6100
STv0900
and
2 x STb6100
Local SD TV
Transport
streams in
CVBS/YC
STi7200
7200
Remote SD TV
CVBS/YC
PTSN
MAFE
Smart
cards
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Applications
Figure 4.
STi7200
HD DVD/BD (blue laser disc) player system
Home plug
UART
VSB1
(STB0370)
HDMI
TSIN0
1080i/720p
HD TV
SD CVBS
VSB1
(STB0370)
TSIN1
USB 2.0
USB 2.0
Bridge
USB 2.0
STi7200
I2S
SATA
Audio DAC
Audio DAC
Audio DAC
SATA
Audio DAC
Audio DAC
Ethernet
PHY
Ethernet
controller
S/PDIF
EMI
ST Flash
(64 MB)
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Revision history
Revision history
Table 1.
Document revision history
Date
Revision
07-Dec-2006
1
Changes
Initial release.
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Revision history
STi7200
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