NTAG213F/216F
NXP Semiconductors
NFC Forum T2T IC with 144/888 bytes user memory and field detection
The MIRROR_CONF bits (see Table 8 and Table 10) define if ASCII mirror shall be
enabled for the UID and/or NFC counter.
If both, the UID and NFC counter, are enabled for the ASCII mirror, the UID and the NFC
counter bytes are separated automatically with an “x” character (78h ASCII code).
8.7.1 UID ASCII mirror function
This function enables NTAG21xF to virtually mirror the 7 byte UID in ASCII code into the
physical memory of the IC. The length of the UID ASCII mirror requires 14 bytes to mirror
the UID in ASCII code. On the READ or FAST READ command to the involved user
memory pages, NTAG21xF will respond with the virtual memory content of the UID in
ASCII code.
The position within the user memory where the mirroring of the UID shall start is defined
by the MIRROR_PAGE and MIRROR_BYTE values.
The MIRROR_PAGE value defines the page where the UID ASCII mirror shall start and
the MIRROR_BYTE value defines the starting byte within the defined page.
The UID ASCII mirror function is enabled with a MIRROR_PAGE value >03h and the
MIRROR_CONF bits are set to 01b.
Remark: Please note that the 14 bytes of the UID ASCII mirror shall not exceed the
boundary of the user memory, otherwise the mirroring is not executed.
Table 11. Configuration parameter descriptions
MIRROR_PAGE
04h
MIRROR_BYTE bits
00b - 11b
10b
Minimum values
Maximum value
last user memory page - 3
NTAG213F_216F
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Product data sheet
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Rev. 3.1 — 28 August 2013
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