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???
07/27/08 14:39
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#157084 - Definition of "most"
Responding to: ???'s previous message
It looks like I was wrong when I said most.

I took the Keil data base and sorted it by number of data pointers. Of the 912 devices listed, 65% only have one data pointer.

The number varies greatly by manufacturer. Silicon Labs has a lot of parts, and none have data pointers. The list also includes a number of obsolete parts, both with and without data pointers.

For the major manufacturers, here are the percentages of offerings with a single data pointer:

Atmel: 42%
Dallas: 36%
Infineon: 69%
Intel: 100%
NXP: 43%
SiLabs: 100%
ST: 41%
TI: 21%

I spend a good deal of my day studying Atmel and NXP data sheets, and so my sample was biased.




List of 16 messages in thread
TopicAuthorDate
DPTR to hold 16 bit address            01/01/70 00:00      
   No. It is just a register.            01/01/70 00:00      
   Remember that there are two data pointers            01/01/70 00:00      
      let me get on my soapbox            01/01/70 00:00      
         More information is always helpful.            01/01/70 00:00      
         device info            01/01/70 00:00      
      Is that true?            01/01/70 00:00      
         Two?            01/01/70 00:00      
            You can ignore multiple DPTRs            01/01/70 00:00      
         Definition of "most"            01/01/70 00:00      
            my take on multiple dptrs            01/01/70 00:00      
      What idiot gave Lynn a -1 point??            01/01/70 00:00      
         Overreacting?            01/01/70 00:00      
         Karma            01/01/70 00:00      
         Calm down - it's perfectly valid and correct            01/01/70 00:00      
   Don\'t use any register            01/01/70 00:00      

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