> -----Original Message-----
> From: Tony Nixon [SMTP:Tony.Nixon@ENG.MONASH.EDU.AU]
> Sent: Wednesday, May 01, 2002 7:54 AM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      [PIC]: CAS/RAS
>
> Hi all,
>
> Has anyone got some knowledge of CAS before RAS refresh?
>
> Does CAS go LOW, then RAS gets cycled for each ROM address, then CAS
> goes HIGH again?
>
> I have a 4 Meg X 9 30 pin SIMM hooked up to a 16F877 and while it
> appears to work, I don't know if the refresh is correct.
>
If it's working then probably! Some information at
http://www.jdm.homepage.dk/dram.htm might be usefull.

Cheers

Mike

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu