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14.14.2 Functions
NXP UCODE DNA
1
2
3
Fig. 75: Authentication: NXP UCODE DNA
①
Get key
reads key 0 or key 1 currently set in the selected tag; only if the key has not been activated
②
Set key
sets key 0 or key 1 on the selected tag
③
Activate key
activates key 0 or key 1 on the selected tag
Untraceable
1
7
4
2
3
5
6
Fig. 76: Authentication: untraceable
①
U:
asserts or deasserts U in XPC_W1; see
EPCglobal Gen2 Specification, p. 106
②
EPC
shows or hides memory above the visible EPC
③
New EPC length
sets new EPC length in words
④
TID
Show
shows the complete TID
Truncated
shows the first two wor
ds in case of E2 and only one word in case of E1
Hide
hides the complete TID
⑤
User
shows or hides the user memory bank