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???
07/27/09 04:42
Modified:
  07/27/09 04:42
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 		 #167917 - as opposed to MMC, which uses the same connector
Responding to: ???'s previous message
Andy Neil said:
Richard Erlacher said:
I've not (yet) encountered an 805x app that actually uses CF or SD in the way in which it was intended.

What do you see as "the way in which it was intended"?

I mention that in contrast with the degraded modes in which he CF and SD devices are often used in conjunction with MCU's, discarding half or more of the available data storage by using only bytes while addressing words, in the case of CF in "true ide" mode, or, in the case of SD, using SPI mode, rather than "full-speed" mode, which uses four bits rather than one. That was one of the "advances" in the transition from MMC to SD.

they're so cheap its hard to avoid being tempted by their availability. The only "issue" is their connector.

Which, presumably, is why they've come up with this "embedded" version that has no connector?

Which brings us back to the OP's specific question: has anyone actually seen any of these parts available for purchase?

If so, do they, as you say, still offer the same "large scale raw nonvolatile memory at a tiny fraction of the cost-per-bit of other non-volatile storage"



List of 28 messages in thread
TopicAuthorDate
Embedded SD Memory - anyone seen any?            01/01/70 00:00      
   what's the point?            01/01/70 00:00      
      A microcontroller != flash memory controller            01/01/70 00:00      
         of course not, it's just one task of many ;-)            01/01/70 00:00      
            You actually gain a lot            01/01/70 00:00      
               whatever            01/01/70 00:00      
                  even more to the roots            01/01/70 00:00      
                     Solderability not a problem            01/01/70 00:00      
            There are advantages            01/01/70 00:00      
      Memories can be purchased separately.            01/01/70 00:00      
         memories... of the shelf...            01/01/70 00:00      
            Pricey and consumes a lot of processor pins            01/01/70 00:00      
               an interesting overview            01/01/70 00:00      
               Is 8 pins a "lot of pins"?            01/01/70 00:00      
                  Not SD - the linked memory            01/01/70 00:00      
                     is 17 a very large number? ;-)            01/01/70 00:00      
                        Show me your solderable SD module            01/01/70 00:00      
                           there's nothing to prevent you from soldering a micro-SD            01/01/70 00:00      
                              That's stretching it a bit            01/01/70 00:00      
                        Every extra pin needed can be very expensive            01/01/70 00:00      
   There's cheap SD with PCI            01/01/70 00:00      
      Oddly enough ...            01/01/70 00:00      
         connector issue            01/01/70 00:00      
         The only "issue" is their connector            01/01/70 00:00      
            as opposed to MMC, which uses the same connector            01/01/70 00:00      
   Found it - "iNand"!            01/01/70 00:00      
      how does its cost compare            01/01/70 00:00      
         Dunno            01/01/70 00:00      

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