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STI5118ALC
Low-cost interactive FTA set-top box decoder
Data BriefNovember 2008 Rev 1 1/5
STi5118Low-cost interactive FTA set-top box decoder
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 link-
list 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
Description STi51182/5
1 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.
The STi5118 features the ST20 CPU that is standard across the OMEGA range but boosts
the clock speed to 200 MHz which, when combined with the 2D graphics engine gives the
new device outstanding graphics performances, for mosaic composition, fast channel
change time and richer graphic content. Targeting low-cost, single tuner STB applications,
the STi5118 is hardware and software binary compatible with the STi5105. This allows
manufacturers to use a unified platform for all mass market set-top boxes.
The integration of the VCXO and audio DACs ensures that manufacturers using the
STi5118 will cut their total bill of materials and significantly simplify board design and
assembly.
STi5118 Ordering information3/5
2 Ordering information
Table 1. Ordering information
Revision history STi51184/5
3 Revision history
Table 2. Document revision history
STi51185/5
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