data brief for further information contact your local stmicroelectronics sales office. november 2011 doc id 022120 rev 3 1/4 1 STIH225 interactive hdtv cable stb processor with integrated front-end 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 hp@l4 ? mpeg-2 mp@hl ? smpte vc-1 ap@l3 firmware-based multi-standard audio processor for: ? mpeg-1 i/ii/iii (mp3), mpeg-2 acc (aac- lc) ? mpeg-4 he aac (aacplus) ?dolby ? digital (ac-3), dolby digital plus firmware-based programmable transport stream (pti) processor 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, hdmi tm , esata single port 10/100 fast ethernet transceiver description 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. jtag stb peripherals i/o digital video ed/sd out resets analog out clocks modes pcm i/o s/pdif out external interrupts clock gen system serv peripherals ssc uart ilc pwm infrared smartcard connectivity transport security audio i/o display video i/o audio decoder video decoder emi pci serial lmi system interfaces cpu/fpu stbus triple fdma bdisp blitter usb 2.0 esata ethernet if in rf out ddr2 serial flash memory flash, sflash nor, nand pcm reader pci peripherals pcm players dacs flash analog video ed/sd out gpio docsis 2.0 + mac transceiver cable itu-t j.83 a/b/c mcard www.st.com
introduction STIH225 2/4 doc id 022120 rev 3 1 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 prov ides world leading, multi-layer, advanced security technologies to protect valuable video and audio assets. 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 cost- effective 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 down- stream 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 st andard 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-f i), 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
STIH225 revision history doc id 022120 rev 3 3/4 2 revision history table 1. document revision history date revision changes 14-oct-2011 1 initial release. 24-oct-2011 2 minor content changes. 11-nov-2011 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
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