Reply To: Double Size UIDs

Forum MIFARE general topics and applications Double Size UIDs Reply To: Double Size UIDs

Re: Double Size UIDs

29. December 2015 at 20:12
Christopher isn't asking about BCC1, he is asking about UID6.
In almost every MIFARE tag with a double size UID, UID6 is 0x80 (even in the examples provided in various MIFARE documents). I have seen a few with 0x81 or 0x84, but most are 0x80. Is UID6 used as a bit mask or something?
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