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Difference between 10Base-T and 100Base-T Ethernet

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chhsieh

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the difference between 10baset and ethernet

Hi to all,

I'm a beginner in Ethernet.

Recently I'm assigned to integrate our in-house Ethernet MAC IP from my boss. One of the feature is claimed that it is capable to operate at 10Base-T. On the other hand, some introductory materials said that the difference between 10Base-T and 100Base-T is frequency (the later is faster).

From information described above, is it possible to operate at 100Base-T for this Ethernet MAC IP core if the clock input is changed from 2.5MHz to 25MHz? Of source, all met timing constraints is assumed.

Thanks for your response and please suggest or correct me if possible.

Regards,
chhsieh:D
 

10base-t difference

could u give more details about 2.5 or 25 MHz??
 

Dear snb7sug,

Sorry for my unclear question. Please drop the statement about 2.5MHz and 25MHz I mentioned in the question.

My question is:
For a 10Base-T capable Ethernet MAC IP core, could it operate under 100Base-T without modifications?


Best Regards,
chhsieh
 

According to what i have studied, a 100Base-t Ethernet has backward compatibility with 10Base-t Ethernet, ie both the LANs can be bridged together.
So considering that i feel a 10Base-t Ethernet can work under a 100Base-t one.
 

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    chhsieh

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Yes it will work
 

SSP is quit right, If you make an industrial package, after updating it you should have backward compatibility to save your trade. by this sentence, I want to assure you not only in Ethernet but also in other standards backward compatibility is an important factor and all standars which are modified to have better results will support their previous versions.
 

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    chhsieh

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I think all versions supports the "auto negotiation" feature
that means a negotiation occures at the start of the session to select the suitable speed for both source and distnation
 

Yes,that's rgt.
this feature of autonegotiation is present in 100base-t ethernet.
it is used for 3 basic purposes:
1. provide compatibility between incompatible devices
2. enable a node to know the capabilities of another node
3. enable a node to know the capabilities of a router.
 

However, 100BaseT working in 10BaseT network, the speed is only 10Mbps.
 

Obviously,that is how it achieves compatibility.
 

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