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Architectures and Processors forum ITCM, DTCM and IRAM access

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ITCM, DTCM and IRAM access

Mallikarjun Shivappa Bidari over 11 years ago

Note: This was originally posted on 28th March 2012 at http://forums.arm.com

Hi,

The ITCM and DTCM are used to improve the performance or the access speed (Low latency memory and Unpredictibility of the caches).
Similarly the IRAM also provides the improved speed.
If the system has both IRAM and TCM, then how does the IRAM and TCM access differ (Where does IRAM and TCM connected, is it on system bus)?

Regards,
Malli

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0 Martin Weidmann over 11 years ago

Note: This was originally posted on 30th March 2012 at http://forums.arm.com

TCMs are connected directly to the processor, not through the bus. So you don't have bus arbitration or the overhead of the bus protocol when you speak to them.
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0 Martin Weidmann over 11 years ago

Note: This was originally posted on 30th March 2012 at http://forums.arm.com

TCMs are connected directly to the processor, not through the bus. So you don't have bus arbitration or the overhead of the bus protocol when you speak to them.
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