STMICROELECTRONICS STIH225

STiH225
Interactive HDTV cable STB processor with integrated front-end
Data brief
– Dolby® Digital (AC-3), Dolby Digital Plus
Features
■
■
■
DOCSIS/EuroDOCSIS 2.0 cable modem with
support for DOCSIS 3.0 down-stream channel
bonding
Integrates three cable receiver/demodulators
with 12-bit ADC IF interface and one cable
transmitter with 14-bit DAC output
Dual core architecture
®
■
Linux compatible
■
Firmware-based multi-standard HD video
decoder for:
– H.264 / MPEG-4 AVC [email protected]
– MPEG-2 [email protected]
– SMPTE VC-1 [email protected]
■
CPU/FPU
Resets
Clocks
Modes
Clock Gen
System serv
■
DVR support, and trick play modes
■
Dual display HD and SD
■
2D Blitter graphics with video mosaic support
■
Multi-level layered security
■
Interfaces include USB, Ethernet, HDMITM,
eSATA
■
Single port 10/100 fast Ethernet transceiver
The STiH225 is an interactive HDTV set-top box
device, with an embedded DOCSIS cable modem
capable of providing DOCSIS set-top gateway
(DSG), interactive multimedia and internet access
for the digital cable market. STiH225 device can
be used as a mini gateway for the home network.
Analog out
PCM I/O
S/PDIF out
STB peripherals I/O
External interrupts
Audio I/O
Peripherals
PCM players
PCM reader
DACs
SSC
UART
ILC
PWM
Infrared
Smartcard
GPIO
Triple FDMA
Bdisp Blitter
Firmware-based programmable transport
stream (PTI) processor
Description
Firmware-based multi-standard audio
processor for:
– MPEG-1 I/II/III (MP3), MPEG-2 ACC (AACLC)
– MPEG-4 HE AAC (aacPlus)
JTAG
■
Audio decoder
System
interfaces
Flash, SFlash
NOR, NAND
EMI
PCI
Serial
Flash
LMI
PCI Peripherals
Serial Flash
DDR2
Memory
STBus
Transport
Security
Video decoder
Display
Video I/O
USB 2.0
Connectivity
DOCSIS 2.0 + MAC
eSATA
ITU-T J.83 A/B/C
Ethernet
Cable
transceiver
MCARD
November 2011
RF out
IF in
Digital video ED/SD out
Analog video ED/SD out
Doc ID 022120 Rev 3
For further information contact your local STMicroelectronics sales office.
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www.st.com
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Introduction
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STiH225
Introduction
The STiH225 is a highly integrated system-on-chip (SoC) designed to meet the demanding
need of the interactive cable set-top box market. The STiH225 integrates all the major
system functions into a single device, and provides world leading, multi-layer, advanced
security technologies to protect valuable video and audio assets.
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Features
Benefits
Combines a cable transceiver and ITU-T J.83
A/B/C demodulator with STB decoding and
display functions
This highly integrated SoC helps to reduce board
area and manufacturing cost, allowing costeffective and small-size STBs to be designed for
ITU-J.83 A/B/C (DVB-C, SARFT, SCTE-40)
networks
Integrates EuroDOCSIS/DOCSIS 2.0 cable
modems with support for DOCSIS 3.0 downstream channel bonding
The embedded EuroDOCSIS and DOCSIS cable
modems are capable of providing DOCSIS set-top
gateway, interactive multimedia and internet
access for the digital cable market
Serial Flash-based secure boot and code
storage; 35 mm x 35 mm x 2.30 mm PBGA
package
Enables further BOM optimization and cost
reduction of advanced decoding SD STBs
ST40 applications CPU,
32 K I cache, 32 K D cache
Superscalar performance from a single CPU core,
using standard tools and operating systems (Linux)
STMicroelectronics' DELTA video decoding
system with ST231 processor
Decoding of advanced standard definition MPEG2,
H.264 and VC-1/WMV9 streams, with the
performance and flexibility for web-based content
decoding such as Flash, DivX, MJPEG, XviD and
Real
Dual USB 2.0 hosts, dual Ethernet MAC with
one PHY compatible with MII/RMII and GMII
Extensive high-speed connectivity for the widest
range of STB peripherals, such as Flash drives,
external HDDs, home network controllers (for
example MoCA, Wi-Fi), memory cards
Advanced 2D graphics and display subsystem
Allows visually appealing user interfaces and
video-rich navigation to be offered to consumers,
while high-quality progressive output can be
watched on the latest displays
Doc ID 022120 Rev 3
STiH225
2
Revision history
Revision history
Table 1.
Document revision history
Date
Revision
14-Oct-2011
1
Initial release.
24-Oct-2011
2
Minor content changes.
3
– Updated the reference to DVB-C to ITU-T J.83 A/B/C in the block
diagram on page 1
– Updated the reference to DVB-C to ITU-J.83 A/B/C (DVB-C,
SARFT, SCTE-40) in the Features & Benefits table on page 2
11-Nov-2011
Changes
Doc ID 022120 Rev 3
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STiH225
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