Hi
I am working on ARM7TDMI Please help me to understand the following points:
1. how does the current drawn by the processor with respect to the operating frequency(please mention the current values).
2. Please specify the ideal current drawn by the processor with no workload.
3. What is maximum current that can be drawn by the arm core?
Thanks and Regards
PVJ
ARM7TDMI is just the "design" for the processor core, not a particular physical device.
Power consumption depends on the implementation of that by a particular silicon manufacturer - they are normally able to provide this information or you can check the part datasheet.
HTH, Pete
Hi peter harris,
Since E= P*T
and P= I*V, V is core voltage and " I " changes according to the application algorithm. I am attaching paper for your reference. I need to know the current drawn by the arm core when it is in ideal condition and also P is directly proportional to the operating frequency and hence the current. Kindly help me in this regard
Regards
http://mprc.pku.edu.cn/~liuxianhua/chn/corpus/Notes/articles/islped/ISLPED2000/p185-chang.pdf
The ARM7TDMI sold by ARM is just the "blueprint" for a processor, a source code description for the processor logic.
ARM's silicon partners turn this into a physical silicon design, but they can all make different choices about how they do this. The power characteristics depend on many things - silicon process, silicon library choice, synthesis target frequency, etc, etc.
There is no "standard" behavior for an ARM7TDMI - it depends on the specific chip you are using. You need to ask this question to a specific chip vendor.