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TM4C1294NCPDT: MAC address support

Vincenzo Pizzolante
Mastermind 25486 points
Part Number: TM4C1294NCPDT

hi,

we are working on a new BA project (FACP) based on TM4C1294NCPDT.

This TIVA has no MAC address for the TCP/IP stack.

Our research comes to the point that it will be necessary to order a block of MAC addresses from the IEEE organization.

Please advise if that order from IEEE is sufficient to have the 48 bits MAC for the implementation of Ethernet, or we should consider some more while ordering MAC address.

thanks a lot in advance

KR

Vincenzo

  • 0
    TI__Guru**** 191886 points

    Hi Vincenzo,

     The Ethernet MAC address is 48-bits in length and can provide a total of  281.5 trillion possible addresses. The first 3 bytes (24-bits) are reserved for identifying the vendor or manufacturer while the remaining 3 bytes (24-bits) are used to provide unique addresses to each device. You could have 16.7 million unique addresses by a given vendor. If you think you can possibility run out of 16 million addresses then you might want to consider asking for more than 1 block of OUI addresses from IEEE.