Description
STMicroelectronics sets a new standard for performance, price and integration in the single chip MPEG-2 set-top-box decoder market with the introduction of the STi5118. This highly integrated solution targets mass market FTA set-top boxes, offers increased performance over earlier devices and includes many features for further reduce costs, including a unified memory architecture.

FEATUREs
■ Enhanced ST20 32-bit VL-RISC CPU
   – 200 MHz, single cycle cache, 4 Kbyte
      instruction cache, 4 Kbyte data cache, 2
      Kbyte SRAM
■ Unified memory interface
   – Up to166 MHz, 16-bit wide SDRAM
      interface
■ Programmable flash memory interface
   – SRAM, peripheral, Flash, SFlash™ support
   – support for low cost DVB-CI and ATAPI
■ Programmable transport interface (PTI)
   – single transport stream input
   – support for DVB transport streams
■ MPEG-2 MP@ML video decoder
   – fully programmable horizontal and vertical
      SRCs
■ Graphics/display
   – advanced blitter base compositor
   – 8 bpp CLUT graphics, 256 x 30 bits
      (AYCbCr) CLUT entries
   – 16 bpp true color graphics, RGB565,
      ARGB1555, ARGB4444 formats, with linklist control
   – Alpha blending, antialiasing, antiflutter,
      antiflicker filters
   – 2D paced blitter engine with fill function
■ PAL/NTSC/SECAM encoder
   – RGB, CVBS, Y/C and YUV outputs with four
      10-bit DAC outputs. RGB/CVBS or
      YUV/CVBS or YC/CVBS
   – Encoding of CGMS, Teletext, WSS, VPS,
      close caption.
■ Audio subsystem
   – MPEG-1 layers I/II
   – simultaneous MPEG audio decode and
      output of Dolby® streams on S/PDIF
   – IEC958/IEC1937 digital audio output
      interface
   – integrated stereo audio DAC system
■ Central DMA controller
■ On-chip peripherals
   – two ASCs (UARTs) with Tx and Rx FIFOs
   – three 8-bit banks of parallel I/O and one
   7-bit bank
   – two SSCs for I²C/SPI master/slave
      interfaces
   – infrared transmitter/receiver
   – integrated VCXO