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STiH237
HD satellite STB processor with integrated demodulator
and low power standby controller
Data brief
Features
■ ST40 applications CPU with 256 KB L2 cache
■ 16-bit LMI supporting DDR2/DDR3
■ Decoding of H264, MPEG2, VC-1 and AVS HD
video streams
■ 3DTV decoding and display compatible with
HDMI 1.4a
■ Extensive connectivity (2 × USB 2.0 ports;
Ethernet MII/RMII/TMII port; SD/MMC card
port; PCI-e)
■ Secure boot from SLC NAND Flash or Serial
NOR Flash; eMMC booting option
■ Low-power process and architecture
■ Integrated low power standby controller
■ High-quality video resizing and de-interlacing
■ Integrated Ethernet PHY
■ Targets two layer PCBs for cost-effective
zapper STB applications
■ Integrates DVB-S/DVB-S2 single stream
demodulation and FEC
Description
The STiH237 uses the latest process technology
to provide a cost-effective, feature rich, highly
integrated SoC for set-top boxes (STBs). It is
targeted at the advanced decoding STB market
across satellite networks, and is suitable for
operator markets (with advanced security) and
retail markets worldwide.
The STiH237 provides a solution for operators
and manufacturers to specify a range of costeffective, high performance zapper STBs, with
content delivery possible using broadcast or
broadband networks, or both (hybrid STBs).
The STiH237 integrates a high performance
satellite receiver supporting DVB compliant
reception, channel demodulation, and forward
error correction (FEC). The single stream
demodulator is compatible with DVB-S2
(QPSK/8PSK), DVB-S (QPSK) and legacy
DirecTV
TM
transmission standards.
JTAG
CPU/FPU
Transport
Security
Transport streams
Parallel/serial in/out
Resets Analog out
Clocks
Modes
Clock Gen
System
services
Dual FDMA
L2 cache
Video decoder
Low power
standby
controller
DVB-S
DVB-S2
demodulator
IF in
Transport
stream
PCM I/O
S/PDIF out external interrupts
Audio I/O
Audio decoder
Display Video I/O
STBus
STB peripherals I/O
Peripherals
Analog video
HDMI
System
interfaces
DDR3 LMI
Connectivity
SLC NAND Flash
Serial Flash
CI-Plus cards
DDR2/DDR3
Dual USB
PCI-e
Ethernet
SD-MMC/SDIO
February 2012 Doc ID 022871 Rev 1 1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
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Introduction STiH237
1 Introduction
The STiH237 offers current users of ST’s growing family of advanced decoding ICs
enhancements in performance and features, enabling operators to offer consumers new
multimedia-rich services and viewing experiences, including new 3DTV features. Faster
DDR3 memory is also supported, and the applications CPU benefits from an L2 cache. The
STiH237 keeps pace with the latest advanced security requirements of the main CA
vendors, and an integrated standby controller enables the STiH237 to target stringent low
power regulations.
Features Benefits
ST40 applications CPU, with 32KI and 32KD L1
caches and 256K L2 cache.
Integrated low power standby controller within its
own power island.
Latest generation of ST's Delta video decoder,
coupled with a High Quality Video Display
Pipeline (HQVDP).
Dual USB 2.0 hosts, Ethernet MAC with
MII/RMII/TMII interfaces, PCI-e, SD-MMC/SDIO
interface.
NOCS1.0/1.1/1.2/3.0, NSK2.0 and DVB-CSA3
ready.
High performance processing for applications and
middleware.
Secure hibernation to, and fast resume from, very
low power passive standby mode, targeting STB
standby power < 0.5 W.
Decoding of advanced high definition standards
(MPEG2, H264, VC-1, AVS) plus the performance
and flexibility for web-based content decoding such
as Flash
impacting applications CPU performance.
Extensive high speed connectivity for the widest
range of STB peripherals, such as Flash drives,
external HDDs, Ethernet, home network controllers
(such as MoCA
memory cards.
Fully compliant with the latest advanced security
requirements of CA vendors.
®
, DivX™, MJPEG and Real®, without
®
, Wi-Fi), DOCSIS® modem and
Integrated DVB-S/DVB-S2 demodulation/FEC Highly integrated STB solution reducing
component count and manufacturing BOM.
Ball compatible with other STiH2xx family
variants.
2/4 Doc ID 022871 Rev 1
Single platform versatility across all networks
(satellite, cable, terrestrial, and IP).
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STiH237 Revision history
2 Revision history
Table 1. Document revision history
Date Revision Changes
28-Feb-2012 1 Initial release.
Doc ID 022871 Rev 1 3/4
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STiH237
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4/4 Doc ID 022871 Rev 1
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