ST公司的STi7106是新一代多用途HD STB解決方案，采用先進(jìn)的高清（ＨＤ）譯碼（H264/VC-1/MPEG2/AVS)，滿足ＳＴＢ和藍(lán)光ＤＶＤ播放器的制造需求，和DVB, ISMA, ATIS-IIF, SCTE, DirecTV, ATSC, ARIB, CEA, ITU, OpenCable, MSTV以及BD規(guī)范兼容．STi7106在單片內(nèi)集成了主流傳輸解調(diào)技術(shù)，應(yīng)用CPU,A/V譯碼，視頻處理，圖像和顯示器，先進(jìn)的安全性，STB接口，音頻／視頻DAC, HDMI, 雙e-SATA 端口, 雙USB端口，雙以太網(wǎng)控制器（1x GbE）以及MMC/SD/SDIO卡控制器．本文介紹STi7106主要特性和優(yōu)勢，方框圖以及典型應(yīng)用框圖，包括有線以太網(wǎng)或Wi-Fi 連接的IP客戶端HD STB方框圖，混合DTT/IP HD STB方框圖，帶MoCA的雙調(diào)諧DVB-C/IP HD DVR STB方框圖，帶DOCSIS多調(diào)諧DVB-C/IP HD DVR STB方框圖和雙調(diào)諧DVB-S2/IP HD DVR STB方框圖．
The STi7106 is targeted at the latest operator and CE manufacturer requirements for STBs and Blu-ray DVD players, which utilize advanced HD decoding(H264/VC-1/MPEG2/AVS), and which conform to DVB, ISMA, ATIS-IIF, SCTE, DirecTV, ATSC, ARIB, CEA, ITU, OpenCable, MSTV, and BD specifications.
The STi7106 provides a solution for operators to specify a range of cost-efficient, high performance HD STBs including cost-efficient zappers, IP clients, interactive STBs, DVR standalone and DVR server/home network capable STBs, and with content delivery possible using broadcast or broadband networks, or both (hybrid STBs).
The STi7106 keeps pace with the latest conditional access, DRM and trusted platform requirements of major operators worldwide by incorporating the latest generation of advanced security features.
The STi7106 offers current users of ST’s growing family of advanced decoding Ics enhancements in performance and features whilst reducing cost and time to market for the next generation deployments.
STi7106主要特性和優(yōu)勢:
The STi7106 has the following main features:
CPU
● High performance CPUs for applications (ST40) and audio/video decoding (2 x ST231)
– ST40-300, dual-issue, applications CPU, 32 KI, 32 KD caches, MMU, FPU
– Target speed 450 MHz delivering > 800 DMIPs
System and memory interfaces
● Single 16/32-bit DDR2 local memory interface (LMI), up to 400 MHz
● 16-bit external memory and peripheral interface (EMI) - up to five banks
● Interfacing to, and boot from, parallel NOR or NAND Flash
● High speed SPI port for interfacing to and boot from Serial Flash
– Supports standard SPI and dual I/O protocols
● MMC 4.2/SD 2.0 interface
● 32-bit, 33 MHz, PCI interface, shared on EMI with access interleaving possible
● Disc-less timeslip feature supported via NAND Flash (raw or managed) attached to EMI, USB, or MMC interfaces
Video decoding
● Latest generation “Delta” video decoder with ST231 programmable CPU core:
– MPEG2, H264, VC-1/WM9, HD or SD advanced video decoding
– AVS HD/SD decoding
– Provides flexibility to support other codecs (DivX, XviD, H263 encode/decode, Flash, Real, MJPEG)
– HD and SD decoding or dual SD decoding, PIP & Mosaic capable
– Real-time transcoding of MPEG2 SD to H264 SIF
● Advanced deblocking, mosquito noise reduction of decoded MPEG2 SD sources based on ST’s digital source enhancer (DSE) technology with 2D analysis window and texture adaptive filter
Audio
● ST231 CPU based audio decoder. MPEG1 I/II, MP3, Dolby Digital/DD+, MPEG4 AAC/AAC+, Dolby TrueHD, DTS, DTS-HD, DTS HD master audio multichannel audio decoding
– Concurrent audio description decoding
– DD+ and AAC+ transcoding
● Integrated stereo audio DAC
● 7.1-channel audio PCM output interface and separate stereo audio PCM output interface
● Stereo audio PCM input interface
● Independent SPDIF output
Display and output
● Main and aux video display pipelines:
– Main: high quality H & V reformatting/resizing with sample rate conversion/filtering. Motion and detail adaptive spatial and temporal deinterlacing for 480p/576p and 1080p60 progressive output; film mode detection
– Aux: high quality H & V reformatting/resizing with sample rate conversion/filtering
● Three independent graphics planes with H & V resize, CLUT and anti-flicker filtering
● Link list based 2D graphics blitter
– Up to 266 Mpixels/sec with destination alpha blending
– Capable of high performance animated 3D user interface effects with tile RAM bandwidth saver enhancement
– Run length decoding support for BD
● Independent main and aux display compositions (video/graphics mixing)
● Pass-through display for graphics, main video or aux video output concurrently with main and aux compositions
● HD display capture and down-conversion for concurrent HD and SD output of the main composition
● HDMI interface with HDCP copy protection (HD/ED/SD formats up to 1080p60)
– Is in full compliance with all features of v1.3a, including deep color, enhanced colorimetry pass through (xvYCC, gamut metadata), 8 ch PCM, high bit rate (HBR) audio, and CEC
● Display output:
– 16-bit digital video output (DVO) for main display composition (HD/ED/SD formats
up to 1080p60)
– Second 24-bit DVO for pass through display or main/aux display compositions(HD/ED/SD formats up to 1080p60)
Macrovision and Dwight Cavendish copy protection support
– PAL/NTSC/SECAM digital encoder
– Six 10-bit DACs for component/composite analog video output (HD/ED/SD formats up to 1080i)
● SD/HD digital video input port, 8- or 16-bit YCbCr
Connectivity
● Dual USB 2.0 host interfaces both with PHY
● Integrated 10/100/1000 Ethernet GMAC, Wake-on-LAN, multiple h/w address filters
– Supports 10/100 MII/RMII, Turbo-MII (TMII) up to 300 Mbits/sec and GMII up to 1000 Mbits/sec
● Second Ethernet MAC supporting 10/100 MII/RMII
● Soft modem support: integrated MAFE: integrated system side DAA (Si-Labs)
Transport/security
● Quadruple external TS inputs, triple internal TS from memory
● Dual DVB-CI+ (HD/SD profiles) modules supported
● Multistream transport stream demultiplexing, 400 Mbits/sec, quadruple tuner DVR capable
● DVB/DES/TDES/AES/Multi-2/ICAM descrambling
● DVR supported, with HDD attachment through e-SATA, EIDE (PIO mode) or USB
● CSS (DVD-video), CPRM (DVD-RW), and CPPM (DVD-audio) decryption is provided for the DVD stream
● Blu-ray DVD (BD) security: BD+/AACS
● Advanced security:
– Secure control words
– Secure boot with code authentication
– JTAG locking
– Network/DVR copy protection
STB peripherals and package
● On-chip STB peripherals:
– Two smartcard interfaces
– Four UARTs
Four SSC/I2C
– GPIO banks with alternate functions
– IR Tx/Rx
– UHF Rx/SCD
– PWM
– ILC
– HDMI CEC
– 4 x 4 key matrix scanner
● Package:
– FPGBA 27 x 27mm
– 620 balls
– Pitch 0.8 mm
– Ball 0.5 mm
– Ball to ball compatible with STi7105 with additional balls assigned
● Dual multichannel flexible DMA controllers
圖1.STi7106方框圖
STi7106目標(biāo)應(yīng)用:
The STi7106 integrates in a single IC, multistream transport demultiplexing, applications CPU, A/V decode, video processing, graphics and display, advanced security, STB peripherals, audio/video DACs, digital A/V outputs, HDMI, dual e-SATA ports, dual USB ports, dual Ethernet controllers (1x GbE capable) and MMC/SD/SDIO card controller.
圖2.IP客戶端HD STB方框圖 (有線以太網(wǎng)或Wi-Fi 連接)
圖3. 混合DTT/IP HD STB方框圖
圖4. 帶MoCA的雙調(diào)諧DVB-C/IP HD DVR STB方框圖
圖5. 帶DOCSIS多調(diào)諧DVB-C/IP HD DVR STB方框圖
圖6.雙調(diào)諧DVB-S2/IP HD DVR STB方框圖
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