[plug] Free CD linux - any good ?

David Griffiths griffith at environ.wa.gov.au
Wed Apr 4 12:14:15 WST 2001


Well spotted! silly me - the size of the data bus has nothing to do with
the size of the address bus which is 24 bits in the SX and 32 bits in the
DX.

>	How does that work then?
>
>	16 bits is 64k addressable in my book....  or was there an 8 bit
>extention of some sort, which would give you your 24 bit addressable
>(16M)???
>
>
>
>>	The primary difference I believe is in the width of the data bus
>>-the DX
>>	has twice the external bus width (32 bits) to memory than the SX
>>(16 bits)
>>	which limited it to 16MB of addressable RAM.
>>



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  David Griffiths                             griffith at environ.wa.gov.au

  Air Quality Management Branch
  Department of Environmental Protection          Phone:   61 8 9222 7151

  Westralia Square                                Fax  :   61 8 9321 5184
  141 St Georges Tce
  Perth 6000
  Western Australia
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