ARM920T Performance vs. Clocking Mode, Cache, MMU

Discussion around AT91RM9200 and SAM9 Series Products.

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Portal_Admin
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ARM920T Performance vs. Clocking Mode, Cache, MMU

Fri Jun 18, 2004 9:28 pm

Hi everybody,

I post this message in order to attach a small, but, interesting Technical Paper. This pdf document gives a very good overview and allows to understand the intrinsic delays to fetch instruction or data vs. [the internal bus interface, with or without cache memories, with or without MMU].
This small note has another basic goal: it shows, with a very easy approach, the method to fetch code or data from the processor with and without Cache memory according to the ARM920T Mode (synchronous, asynchronous or fast bus modes).

Good reading
Last edited by Portal_Admin on Wed Feb 22, 2006 2:23 pm, edited 1 time in total.
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jean pierre
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Wed Mar 16, 2005 4:09 pm

hi smith,
this is an interesting and important post u done. :evil:
Is there another document concerning this subject with more details as we could not found these informations in the datasheet and no much advertising is done concerning this functionality. :?: :?: :?:

For example do i have to add this extra clock in the timing between two concecutive instruction read or write when accessing an external nand_flash or SDRAM connected to the EBI :?: :?: :?:
And this anytime i access an external resource??

Best regards
sayhi2008
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Joined: Wed Apr 27, 2005 2:32 am

Fri Jun 03, 2005 11:03 am

Sorry, but i can't find the attachment for this post and the post just under it in, where can i download the file? thanks
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stephan_cadene
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Fri Jul 15, 2005 11:13 am

Hi everybody,

Sorry for the missing attachment, but a lot of attached file links have disappeared. Thus, do not hesitate to send me mails to administrator@at91.com in order to fix that.
chorckbey
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Re: ARM920T Performance vs. Clocking Mode, Cache, MMU

Fri Oct 10, 2008 9:17 pm

hi to everybody
I want to learn programing the ARM microcontroller could you help me about it I am writing from turkey
so your helping could be about datasheet or something like this.. thank you very much to friends who help me
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zoharco
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Re: ARM920T Performance vs. Clocking Mode, Cache, MMU

Mon Sep 13, 2010 4:02 pm

can't find the document...
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stephan_cadene
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Re: ARM920T Performance vs. Clocking Mode, Cache, MMU

Mon Sep 13, 2010 5:42 pm

Hello all,

I am back ;o)
I have received several messages from users did not find documents. For this reason, I am here today.
Tomorrow, I am going to give you a link fromwhere you will donwload this document.
Hope this helps.

Stephan

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stephan_cadene
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Re: ARM920T Performance vs. Clocking Mode, Cache, MMU

Thu Sep 30, 2010 4:53 pm

As I said soon, here is the link to my document about "The AT91RM9200 Access Times ..."
http://slidesha.re/c6UwVX

All the best !!

Remark: Do not hesitate to join the 3,200 ARM Based Group members on LinkedIn People Network for job opportunities

- Stephan Cadene -
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stephan_cadene
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Location: Atmel Corp.
Posts: 163
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Re: ARM920T Performance vs. Clocking Mode, Cache, MMU

Thu Sep 30, 2010 4:53 pm

As I said soon, here is the link to my document about "The AT91RM9200 Access Times ..."
http://slidesha.re/c6UwVX

All the best !!

Remark: Do not hesitate to join the 3,200 ARM Based Group members on LinkedIn People Network for job opportunities

- Stephan Cadene -

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