New ContributorEfficient Way to store and compare MAC addresses
Hello,
I am quite new to using higher level FPGA elements since in college we only used small scale designs with at most 16-bit wide busses and predefined data paths so forgive me if this question is noobish.
I have been given a list of MAC addresses that I need to store and then compare with incoming ethernet frames in a whitelist fashion. I am using the Triple Speed Ethernet IP.
My initial idea was to use a CAM but I have come to understand that modern FPGAs don't have them. I am now thinking to store the addresses in BRAM but now comes the question of how to compare them. Is it possible to have a 48-bit wide comparator or even a 96-bit wide comparator to compare src and dest MACs in a single shot?
Thank you in advance for the help
Yes, if you want to make comparison. You can make use of the comparator, all the IP is in the IP catalog.
What I would suggest is you use modelsim to make sure the behavior is the one that you want.
