Re: Static RAM for ZipGS question

[j0p7771@TAMUTS.TAMU.EDU (Jason Perez)]

In article <Jan.17.11.29.59.1994.14334@eden.rutgers.edu>,
Kid <neiderma@eden.rutgers.edu> wrote:
-I have a ZipGS 7/32 in one GS and a friend has a 8/16 in the other.  One
-ZipGS (the 7/32) has two 32k chips in RAM area 1 and 2, but the 8/16 has
-two 8k chips in RAM area 1 and 2 (or is it 1 and 3?).  How come I have 32k
-with 2 32k chips and he has 16k with 2 8k chips?

  are you sure about this?  if he has only 2 8K SRAM chips then he has
only an 8K cache.  the zipgs uses 8K for data and 8K for tag for an
8K cache.  for a 32K cache two 32K chips are needed.

>If I want to upgrade by 7/32 to a 7/64, how many 32k x 8 25ns chips
>would I need?

   you will need a total of 4 32Kx8 chips, 2 more than you have now.

-- 
Jason Perez                     | "Frodo Lives!"       "Gig 'em!"
j0p7771@tamuts.tamu.edu         | Texas A&M Univ. - it's not just for 
jperez@ee.tamu.edu              |                   farmers anymore!