Re: TI-H: REAL Internal Memory Expansion
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Re: TI-H: REAL Internal Memory Expansion
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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