Re: TI-H: REAL Internal Memory Expansion


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Re: TI-H: REAL Internal Memory Expansion




Manages your memory.


>software mmu? explain.  what is an mmu.
>
>
>At 04:03 PM 10/7/98 -0800, you wrote:
>>
>>>This sounds pretty awesome, but one thing:
>>>The DRAMs will need to be dynamically refreshed, which will put one hell of
>>>a drain on the battery.
>>
>>For 8MB it is 120mA.  Also, you only refresh the areas in ram which contain
>>data.  That could mean the first 100k only gets refreshed...  Not too bad.
>>20mA.
>>
>>>Also, they wil need to be refreshed even when the calc is off.
>>>Plus, this would still neeed to be implemented through the link port, cause
>>>the 32k ram internally is the limit of its capabilities for direct ram
>access.
>>
>>Nope.  Use a software MMU.  Do you think I'm doumb?  :P
>>
>>>it would be like a e2 that requires constant large amounts of power, is a
>>>whole lot bigger, and can be writen to as many times as you want.
>>
>>I know exactly what it is.  If I didn't, I would ask.  Gee...  DRAM is sooo
>>simple.
>>
>>>At 02:37 PM 10/7/98 -0800, you wrote:
>>>>
>>>>I've been looking at specs, and its possible to replace the internal SRAM
>>>>with DRAM.  Then we could have 16MB accessable to our calcs at any time.
>>>>
>>>>Not too hard either.
>>>>
>>>>
>>>>
>>
>>
>>
>>




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