NTAG213F/216F
NXP Semiconductors
NFC Forum T2T IC with 144/888 bytes user memory and field detection
8.7.3.1 UID and NFC counter mirror example
Table 18 show the memory content of a NTAG213F which has been written to the physical
memory. Without the UID ASCII mirror feature, the content in the user memory would be a
URL according to the NFC Data Exchange Format (NDEF) Ref. 3 with the content:
http://www.nxp.com/index.html?m=00000000000000x000000
Table 18. UID and NFC counter ASCII mirror - NTAG213F Physical memory content
Page address
Byte number
dec.
0
hex.
0
1
2
3
2C
ASCII
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
...
04
12
F6
E1
01
34
01
6E
63
69
78
6D
3D
30
30
30
30
30
00
E1
4C
internal
10
41
28
1
80
2
lock bytes
00
3
12
A0
2F
55
70
6D
64
68
3F
30
30
30
30
30
FE
00
4
03
0C
....
5
03
D1
4.(.
6
2B
78
01
.$U.
nxp.
com/
inde
x.ht
7
2E
8
6F
6E
2E
6C
30
2F
9
65
10
11
12
13
14
15
16
17
18
...
74
6D
ml?m
=000
0000
0000
000x
0000
00..
30
30
30
30
30
30
78
30
30
30
00
00
00
....
39
40
41
42
43
44
27h
28h
29h
2Ah
2Bh
2Ch
00
00
00
00
....
dynamic lock bytes
RFUI 0C
RFUI
D4
AUTH0
Access
PWD
PACK
RFUI
With the UID Mirror feature and the related values in the MIRROR_PAGE and the
MIRROR_BYTE the UID 04-E1-41-12-4C-28-80h and the NFC counter value of e.g.
00-3F-31h will be mirrored in ASCII code into the user memory starting in page 0Ch byte
1. The virtual memory content is shown in Table 19.
Remark: Please note that the separation character “x” (78h) is automatically inserted
between the UID mirror and the NFC counter mirror.
Reading the user memory, the data will be returned as an URL according to the NFC Data
Exchange Format (NDEF) Ref. 3 with the content:
NTAG213F_216F
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.1 — 28 August 2013
262231
28 of 56
NXP [ NXP ]
