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2005 International Conference on Computer Design
The TM3270 Media-Processor Data Cache
San Jose, California
October 02-October 05
ISBN: 0-7695-2451-6
Jan-Willem van de Waerdt, Philips Semiconductors, San Jose, CA, USA
Stamatis Vassiliadis, Delft University of Technology Delft, The Netherlands
Jean-Paul van Itegem, Philips Semiconductors, San Jose, CA, USA
Hans van Antwerpen, Philips Semiconductors, San Jose, CA, USA

This paper describes the (micro-) architecture of the TM3270 data cache. We present the cache parameters, such as cache size, associativity, line size and cache policies. We describe the data cache pipeline partitioning and the cache memory structure organization. We introduce "collapsed" and "twoslot" load operations. Furthermore, we introduce a combined software/hardware based technique for prefetching of data into the cache. We use an MPEG2 encoder application for a quantative evaluation of architectural aspects such as data prefetching and show that MPEG2 encoding at 352*288 resolution (CIF) at 25 frames per second can be performed in 33.3 MHz.

Citation:
Jan-Willem van de Waerdt, Stamatis Vassiliadis, Jean-Paul van Itegem, Hans van Antwerpen, "The TM3270 Media-Processor Data Cache," iccd, pp.334-341, 2005 International Conference on Computer Design, 2005
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