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FYI: www.debian.org/ports/mips/cpu



Your page asks:

>> I would like to have informations on the following cpus and informations for
>> completing, correcting the above list.
>>
>> .....
>>
>>      QED R4600 
>>      QED R4700 
>>      QED RM5231 
>>      QED RM5260 
>>      QED RM5261 
>>      QED RM5270 
>>      QED RM5271 

>From the manufacturer's page:
http://www.pmc-sierra.com/products/details/rm5261a/

Vendor/Name   Date   Clock      ICache  DCache  TLB   ISA   Specials
                                                            (all have
FPU)
QED RM5231      -    150-250MHz   32K     32K    -     IV   32-bit
external bus
QED RM5231A     -    250-300MHz   32K     32K    -     IV   32-bit
external bus
QED RM5261      -    200-266MHz   32K     32K    -     IV   64-bit
external bus
QED RM5261A     -    250-350MHz   32K     32K    -     IV   64-bit
external bus
QED RM5271      -    250-300MHz   32K     32K    -     IV   64-bit ext.
bus, external L2 cache

I also believe that the RM52x0 processors are essentially phased out. 
They had 16K/16K of cache relative to their RM52x1 counterparts.

I am unclear as to whether there really is an RM5271A.  However, the
RM5271 is supposed to be replaced by the RM7000A for current designs.

Hope this is of some help in your next page update.
---
Paul K.
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