> 1. How *realistic* is to expect LPC210x to run 60MHz with 3 fetch cycles? > 2. Is the performance better than with 20MHz and 1 fetch cycle? > Mathematically it appears identical (60/3=20/1). What MAM unit does is, it gets 128bits from flash at once, so that is good for 4cycles (4*32=128). So basicly CPU runs at 60MHz and fetches 128bits at once from flash at 20MHz(considering 3 fetch cycles). This is ok for sequental code, but sux if there is a lot of irq handling. /Pero
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Re: [lpc2000] LPC210x performance-MAMTIM; INT latency questions
2004-03-24 by Peter Kuhar