Reference Manual Preliminary
Prox–DU & Prox–SU
www.gemalto.com Release for first samples Do not use for final design
DOC118569A Public Use Page 127/134
Data42 Data43 Data44 Data45 Data46 Data47 90h 00h
Write Operation
Only one page (4 bytes) will be written at the same time.
To perform a write operation, use the standard PC/SC “Update Binary” command.
As only one page will be written only the 4 first bytes of the Data field will be written into the
MIFARE
®
Ultralight chip. The other bytes will be ignored. It is recommended to set the
remaining bytes to all “0” (zeroes).
ABLL 4 bytes written
00h Page 0
01h Page 1
02h Page 2
03h Page 3
04h Page 4
05h Page 5
06h Page 6
07h Page 7
08h Page 8
09h Page 9
0Ah Page 10
0Bh Page 11
0Ch Page 12
0Dh Page 13
0Eh Page 14
0Fh Page 15
As an example the Write command will be:
• To write the 4 bytes “Data0-Data1-Data2-Data3” into Page 4 enter the following
data field:
Data0 Data1 Data2 Data3 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
• To write the 4 bytes “Data44-Data45-Data46-Data47” into Page 15 enter the
following data field:
Data44 Data45 Data46 Data47 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h 00h
00h
Note:
Page 0 and Page 1 have read-only bytes that are write-protected.
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