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MPMC4.03 DDR1 question

Started by MM July 17, 2009
Does anyone know if I can run DDR1 type of memory at double the frequency of 
MPMC4.03 (EDK10.1) main clock? Or is this possible for DDR2 only? I am 
having difficult time trying to understand this from the datasheet. So, 
before digging into the MPMC source code I thought I would try asking...


Thanks,
/Mikhail


On Jul 17, 11:48=A0pm, "MM" <mbmsv@yahoo.com> wrote:
> Does anyone know if I can run DDR1 type of memory at double the frequency=
ofMPMC4.03 (EDK10.1) main clock? Or is this possible for DDR2 only? I am
> having difficult time trying to understand this from the datasheet. So, > before digging into the MPMC source code I thought I would try asking... > > Thanks, > /Mikhail
Hi Mikhail In MPMC v4.03 I don't find any hint that 1:2 clock ratio is not allowed for DDR1. In v5.02 the 1:2 clock ratio is described in chapter Performance... Have fun Florian
"Florian" <googlegroups@47110815.com> wrote
> > In MPMC v4.03 I don't find any hint that 1:2 clock ratio is not allowed > for DDR1.
From looking at the source code I don't believe it will work... I don't think it will work with v5.0 either... /Mikhail