Modem data transfer function wherein code is downloaded during inactivity intervals wherein data transfer function is suspended

摘要

A modem architecture and a method of reducing on-chip memory requirements in a downloadable modem architecture are provided. The preferred architecture consists of a Digital Signal Processor (DSP) ( 6 ) with on-chip Random Access Memory (RAM) ( 12 ). A procedure which exploits inactivity intervals in a modem modulation function is provided. The procedure dynamically downloads the requisite code segments for each phase of the function from a cheaper, slower external memory ( 14 ) into the DSP on-chip RAM during inactivity intervals, thereby reducing the DSP on-chip RAM requirements.