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STI7109
Low-cost HDTV set-top box decoder for H.264 and Microsoft WMA9
Data Brief
Features
The STI7109 is a single-chip, high-definition video decoder including: - Microsoft(R) VC-1, WMA9 and H.264 support - Linux(R), Windows(R) CE and OS21 compatible ST40 CPU core: 266 MHz - transport filtering and descrambling - video decoder: VC-1 (including WMA 9), H.264 (MPEG-4 part 10) and MPEG-2 - SVP compliant - Windows(R) DRM support - graphics engine and dual display: standard and high-definition - audio decoder: including Windows Media(R) Audio 9 (WMA-9) and WMA-9 Pro - DVD data retrieval and decryption
5 x 2-ch PCM out S/PDIF AudioL 2-ch PCM in AudioR Audio DACs Audio decoder and interfaces ST231 core
The STI7109 also features the following embedded interfaces: - USB 2.0 host controller/PHY interface - DVI/HDMITM output - digital audio and video auxiliary inputs - low-cost modem - 100BT ethernet controller with integrated MAC and MII/RMII interface for external PHY - serial ATA (SATA)
DDR SDRAM
SD video in Serial ATA interface
Peripheral I/O and external interrupts
32 ST40 core 266 MHz UDI MMU 16 K Icache Int. control 32 K Dcache
32
Video LMI System LMI
2x I/F SmCard USB 2.0 6x GPIO
IR Tx/Rx ILC
MAFE interface 4x UARTs
PWM 3x SSCs
Digital video input STBus
2 x PDES
CP FDMA Clock generator and system services
Video decoder VC-1 (inc WMV-9) H264/MPEG-2 ST231 core Ethernet, MII/RMII DVI-HDCP HDMI
2D gamma blitter
CUR
3 x GDP
DEI Main video display Aux video display EMI EMPI
PTI
PTI
Display compositor
Output stage DACs
DENC DACs
TSmerger/router
MII/RMII for 100BT Ethernet TSIN0 TSIN1 TS I/O NRSS-A
TMDS main video output (HD)
Main video output (HD) YPbPr
Aux video output (SD) YC/CVBS
Flash or companion chip
December 2006
Rev 2
1/9
www.st.com 9
For further information contact your local STMicroelectronics sales office.
Description
STI7109
1
Description
The STI7109 is a new generation, high-definition set-top box / DVD decoder chip, and provides very high performance for low-cost HD systems. STI7109 includes both Windows Media Video 9 and H.264 video decoders for new, low bit rate applications. Based on the Omega2 (STBus) architecture, this system-on-chip is a full back-end processor for digital terrestrial, satellite, cable, DSL and IP client high-definition set-top boxes, compliant with ATSC, SMPTE VC-1, DVB, DIRECTV, DCII, OpenCable and ARIB BS4 specifications. It includes all processing for DVD applications. The STI7109 demultiplexes, decrypts and decodes HD or SD video streams with associated multichannel audio. Video is output to two independently formatted displays: a full resolution display intended for a TV monitor, and a downsampled display intended for a VCR or DVDR. Connection to a TV or display panel can be analog through the DACs, or digital through a copy protected DVI/HDMI. Composite outputs are provided for connection to the VCR with Macrovision protection. Audio is output with optional PCM mixing to an S/PDIF interface, PCM interface, or through integrated stereo audio DACs. Digitized analog programs can also be input to the STI7109 for reformatting and display. The STI7109 includes a graphics rendering and display capability with a 2D graphics accelerator, three graphics planes and a cursor plane. A dual display compositor provides mixing of graphics and video with independent composition for each of the TV and VCR/DVD-R outputs. The STI7109 includes a stream merger to allow seven different transport streams from different sources to be merged and processed concurrently. Applications include DVR timeshifted viewing of a terrestrial program, while acquiring an EPG/data stream from a satellite or cable front end. The flexible descrambling engine is compatible with required standards including DVB, DES, AES and Multi2. The STI7109 embeds a 266 MHz ST40-202 CPU for applications and device control. A dual DDR1 SDRAM memory interface is used for higher performance, to allow the video decoder the required memory bandwidth for VC-1/HD H.264 and sufficient bandwidth for the CPU and the rest of the system. A second memory bus is also 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 STI7109 devices. This can be used to connect a second STI7109 as a co-decoder for a dual TV STB application. A hard-disk drive (HDD) can be connected either to the serial ATA interface, or as an expansion drive through the USB 2.0 port. For IP-TV applications, the integrated 100BT Ethernet controller and MII/RMII interface can be used for generic Ethernet delivery, as shown in Figure 4: Low-cost HD IP-TV set-top box with HDD on page 4. The USB or Ethernet interfaces can also be used to connect to a DOCSIS 2.0 CM gateway for interactive cable applications. The STI7109 is supported by STMicroelectronics' STAPI software, and is compatible with the STx7100 and STi7710.
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STI7109 Figure 1. Low-cost satellite HD set-top box
IR Tx/Rx
Description
2 x 128 Mbit DDR1
2 x 128 Mbit DDR1
QPSK Rx STV0299 +STi6000
Transport stream in
STI7109
RGB/YPbPr/ HDMI
CVBS/YC VCR PTSN MAFE Smart cards Flash
Figure 2.
Low-cost cable HD set-top box with return channel
CableCARDTM interface
Flash
2 x 128 Mbit DDR1
2 x 128 Mbit DDR1
Broadcast
Tuner and SAW filter EMI STV0498B
IB data/ OOB
Tuner and SAW filter Cable front end QAM/QPSK transceiver Duplex filter Upstream PGA CVBS/YC RS232 Smart cards VCR IR Tx/Rx
STI7109
RGB/YPbPr/ HDMI
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Description Figure 3. Low-cost dual satellite and terrestrial HD set-top box with HDD and DVD
DVD optical interface chip SATA IR Tx/Rx 2xDDR1
STI7109
Flash
HDD
EMI
QPSK Rx STV0299 +STi6000
STI7109
DVB-CI RGB/YPbPr/ HDMI RS232 USB 2.0 Smart cards HDD (expansion)
8VSB Rx Tuner STV0370
PSTN
MAFE
Figure 4.
Low-cost HD IP-TV set-top box with HDD
IR Tx/Rx Flash HDD EMI SATA 2xDDR1
MII Ethernet RJ45 PHY
STI7109
RGB/YPbPr/ HDMI RS232 USB 2.0 Smart cards HDD (expansion)
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STI7109
Description
1.1
1.1.1
Detailed features list
Processor subsystem
ST40 32-bit superscaler RISC CPU - - - - 266 MHz, 2-way set associative 16-Kbyte ICache, 32-Kbyte DCache, MMU 5-stage pipeline, delayed branch support floating point unit, matrix operation support debug port, interrupt controller
1.1.2
Transport subsystem
TS merger/router - - - - - - 2 serial/parallel inputs 1 bidirectional interface merging of 3 external transport streams transport streams from memory support NRSS-A module interface TS routing for DVB-CI and CableCARDTM modules two programmable transport interfaces two transport stream demultiplexers: DVB, DIRECTV(R), ATSC, ARIB, OpenCable, DCII integrated DES, AES, DVB and Multi2 descramblers NDS random access scrambled stream protocol (RASP) compliant NDS ICAM CA support for VGS, Passage and DVS042 residue handling
Programmable transport interfaces (PTIs) - - - - - -
1.1.3
Video/graphics subsystem
Microsoft VC-1 MP@HL (WMV 9) and AP@L3/H.264(MPEG-4 part 10) main and high profile level 4.1/MPEG-2 MP@HL video decoder - - advanced error concealment and trick mode support dual MPEG-2 MP@HL decode

SD (standard package) or HD/SD (extended package) digital video input Displays - one HD display multi format capable (1080I, 720P, 480P/576P, 480I/576I) - analog HD output RGB or YPbPr - HDMI encoded output one standard-definition display - analog SD output: YPbPr or YC and CVBS triple source 2D gamma blitter engine alpha blending and logical operations color space and format conversion
-
Gamma 2D/3D graphics processor - - -
5/9
Description - - -
STI7109 fast color fill arbitrary resizing with high quality filters acceleration of direct drawing by CPU 7-channel mixer for high definition output independent 2-channel mixer for SD output 3 graphic display planes high-quality video scaler motion and detail adaptive deinterlacer linear resizing and format conversions horizontal and vertical filtering HDMI/HDCP copy protection hardware SVP compliant Macrovision(R) copy protection for 480I, 480P, 576I, 576P outputs DTCP-IP AWG-based DCS analog copy protection
Gamma compositor and video processor - - - - - - -
Copy protection - - - - -
1.1.4
Audio subsystem
Digital audio decoder - support for all the most popular audio standards including WMA-9, WMA-9 Pro, MPEG-1 layer I/II, MPEG-2 layer II, MPEG-2 AAC, MPEG-4 AAC LC 2channel/5.1 channel MPEG-4 AAC+SBR 2-channel/5.1 channel, Dolby(R) Digital EX, Pro Logic(R) II, MLPTM and DTS(R) PCM mixing with internal or external source and sample rate conversion 6- to 2-channel downmixing PCM audio input independent multichannel PCM output, S/PDIF output and analog output
- - - -

Stereo 24-bit audio DAC for analog output IEC958/IEC1937 digital audio output interface (S/PDIF) CSS/CPxM copy protection hardware
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STI7109
Description
1.1.5
Interfaces
External memory interface (EMI) - - - 16-bit interface supporting ROM, flash, SFlash, SRAM, peripherals access in 5 banks high speed synchronous mode for interconnecting two STI7109 devices 32-bit MPX satellite, target-only interface, synchronous operation at MPX clock speed, capable of 100 MHz, dual interface (2 x 32-bit) for DDR1 200-MHz (DDR400) memories, supports 128-, 256- and 512-Mbit devices
External microprocessor interface (EMPI) - -
Dual local memory interface (LMI) -

USB 2.0 host controller/PHY interface Serial ATA hard-disk drive support - - record and playback with trick modes pause and time shifting, watch and record

100BT Ethernet controller, MAC and MII/RMII On-chip peripherals - - - - - - - - - - - - - - - - 4 ASCs (UARTs) with Tx and Rx FIFOS, two of which can be used in smartcard interfaces 2 smartcard interfaces and clock generators (improved to reduce external circuitry) 3 SSCs for IC/SPI master slaves interfaces serial communications interface (SCIF) 2 PWM outputs teletext serializer and DMA module 6 banks of general purpose I/O, 3.3 V tolerant SiLabs line-side (DAA) interface modem analog front end (MAFE) interface infrared transmitter/receiver supporting RC5, RC6 and RECS80 codes UHF remote receiver input interface interrupt level controller and external interrupts, 3.3 V tolerant low power/RTC/watchdog controller integrated VCXO DiSEqC 2.0 interface PWM capture/compare functions
Flexible multi-channel DMA
1.1.6
Services and package

JTAG/TAP interface, ST40 toolset support, ST231 toolset support Two package options - - 35 x 35 PBGA, 580 + 100 balls (standard version) 35 x 35 PBGA 708 + 84 balls (extended version)
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Revision history
STI7109
2
Revision history
Table 1.
Date 19-Dec-2006 10-Sep-2005
Document revision history
Revision 2 1 Changes Rewritten to include latest information and corrected product code. Initial release.
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STI7109
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