V02.00 | 2021/02
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7.2.3
Set Tag Protection command
The
Set Tag Protection
command defines the password protection for the tag via a Get com-
mand. For this it has to be specified whether a write protection or a read protection should be
set and the area of the tag to which the password applies. Protection for all areas is defined
with one command.
Write protection is always also contained in a read protection. The tags consist of 8 pages
(EM4233-SLIC chip) or 20 pages (NXP-ICODE-SLIX2 chip). One page consists of 4 blocks of 4
bytes each.
EM4233-SLIC
Page
Block
Status bit
0
0…3
0…15
1
4…7
16…31
2
8…11
32…47
3
12…15
48…63
4
16…19
64…79
5
20…23
80…95
6
24…27
96…111
7
28…31
112…127
NXP ICODE SLIX2
Page
Block
Status bit
0
0…3
0…15
1
4…7
16…31
2
8…11
32…47
3
12…15
48…63
4
16…19
64…79
5
20…23
80…95
6
24…27
96…111
7
28…31
112…127
8
32…35
128…143
9
36…39
144…159
10
40…43
160…175
11
44…47
176…191
12
48…51
192…207
13
52…55
208…223
14
56…59
224…239
15
60…63
240…255
16
64…67
256…271
17
68…71
272…287
18
72…75
288…303
19
76…79
304…319
16 bytes can be write protected with a flag. A second flag must be set in order to set additional
read protection.