STi7105

Main features

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Main features

The STi7105 is a new, advanced decoding SoC targeted at next generation HD STBs

(cable, terrestrial, satellite, DSL, IP, and Hybrid), and has the following features:

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Integrates in a single IC, Multi-stream transport demux, CPU, A/V decode, Video

processing, Graphics and Display, Advanced security, STB peripherals, Audio/Video

DACs, Digital A/V outputs, HDMI, e-SATA port, dual USB ports and Ethernet

MAC/MII/RMII

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High performance CPUs for applications (ST40) and audio/video decoding (2 x ST231)

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ST40-300, dual-issue, applications CPU, 32KI, 32KD caches:

Target speed > 450 MHz delivering > 800DMIPs

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Single 32-bit DDR1/DDR2 Local Memory Interface (LMI), up to 400 MHz

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Latest generation “Delta” Video Decoder with ST231 programmable CPU core:

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MPEG2, H264, VC-1/WM9, HD or SD Advanced Video Decoding

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AVS SD decoding

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Provides flexibility to support other codecs (DivX, XviD, H263 encode/decode)

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HD and SD decoding or dual SD Decoding, PIP & Mosaic capable

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Real-time transcoding of MPEG2 SD to H264 SIF

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Advanced de-blocking and de-ringing of decoded MPEG2 SD sources based on ST’s

DSE (Digital Source Enhancer) Technology with 2D analysis window and Texture

Adaptive Filter

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ST231 CPU based Audio Decoder. MPEG1 I/II, MP3, Dolby Digital/DD+, MPEG4

AAC/AAC+ multi-channel audio decoding. Concurrent audio description decoding.

DD+ and AAC+ transcoding

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Main and Aux Video display pipelines:

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Main: high quality H & V reformatting/resizing with sample rate

conversion/filtering. Motion adaptive spatial and temporal de-interlacing for

480p/576p and 1080p60 progressive output

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Aux: high quality H & V reformatting/resizing with sample rate conversion/filtering

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Three independent graphics planes with H&V resize, CLUT and anti-flicker filtering

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Link list based 2D graphics blitter. Up to 200 Mpixels/sec with destination alpha

blending. Capable of 3D user interface effects.

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Independent Main and Aux display compositions (Video/Graphics mixing)

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Pass-through display for graphics, main video or aux video output concurrently with

main and aux compositions

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HD display capture and down-conversion for concurrent HD and SD output of the main

composition

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HDMI interface with HDCP copy protection (HD/ED/SD formats up to 1080p60). HDMI

interface is in full compliance with all features of v1.3a, excluding deep color, enhanced

colorimetry (xvYCC, gamut metadata), and DST/DSD audio features.

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16-bit Digital Video Output for main display composition (HD/ED/SD formats up to

1080p60)

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Second 24-bit Digital Video Output for pass through display or main/aux display

compositions (HD/ED/SD formats up to 1080p60)

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Macrovision and Dwight Cavendish copy protection support