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???
12/12/11 22:11
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#185079 - above about 40 Mhz devices may need extra cycles
Responding to: ???'s previous message
Hi Jan,

thanks for the table!)

Devices with high core frequency (c8051f120 and the likes) might need extra cycles due to instructions being or not being in cache (or prefetch).
(Or instructions which span more than one byte being or not being aligned to flash memory bus width of 16/32 bit).

Not sure how this could be represented in a table. Eventually footnotes would be fine?

Greetings,
Frieder

List of 19 messages in thread
TopicAuthorDate
'51 derivatives cycle comparison table updated            01/01/70 00:00      
   above about 40 Mhz devices may need extra cycles            01/01/70 00:00      
      silabs with cache            01/01/70 00:00      
         Ok, a SILabs cache lesson            01/01/70 00:00      
            Bytes            01/01/70 00:00      
               ecc?            01/01/70 00:00      
               not the cookies            01/01/70 00:00      
                  Washed?            01/01/70 00:00      
                     am I as has happened before ...            01/01/70 00:00      
                        Is that how it's spelled?            01/01/70 00:00      
                     re: Washed?            01/01/70 00:00      
            jump cache miss penalty            01/01/70 00:00      
               clarifications            01/01/70 00:00      
               no cache for 50MHz            01/01/70 00:00      
                  surely not all            01/01/70 00:00      
                     you missed a word            01/01/70 00:00      
   more update            01/01/70 00:00      
      Table suggestions            01/01/70 00:00      
      Updated MC51 supports Cycle Define            01/01/70 00:00      

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