Editing Intel MCS-51 (section)

== Digital signal processor (DSP) variants ==
Several variants with an additional 16-bit [[digital signal processor]] (DSP) (for example for [[MP3]] or [[Vorbis]] coding/decoding) with up to 675 million instructions per second (MIPS)<ref>{{Cite web |url=http://www.8052.com/news?NEWSID=61 |title=TI Delivers new low-cost, high-performance audio DSP for Home and Car w/ 8051 |access-date=2013-05-06 |archive-url=https://web.archive.org/web/20161113175939/http://www.8052.com/news?NEWSID=61 |archive-date=2016-11-13 |url-status=dead }}</ref> and integrated [[USB 2.0]] interface<ref>{{Cite web|url=http://www.keil.com/dd/docs/datashts/atmel/at85c51snd3.pdf|title=Atmel AT85C51SND3 Audio DSP Data Sheet with USB 2.0|accessdate=30 April 2023}}</ref> or as intellectual property<ref>{{Cite book|chapter=Integration of 8051 With DSP in Xilinx FPGA|first1=A.J.|last1=Salim|first2=M.|last2=Othman|first3=M.A. Mohd|last3=Ali|title=2006 IEEE International Conference on Semiconductor Electronics|date=October 5, 2006|pages=562–566|via=IEEE Xplore|doi=10.1109/SMELEC.2006.380694|isbn=0-7803-9730-4|s2cid=21616742}}</ref> exist.