NTAG213F/216F
NXP Semiconductors
NFC Forum T2T IC with 144/888 bytes user memory and field detection
8.4 Communication principle
The commands are initiated by the NFC device and controlled by the Digital Control Unit
of the NTAG21xF. The command response is depending on the communication state of
the IC and for memory operations also on the access limitations valid for the
corresponding page.
POR
HALT
IDLE
REQA
WUPA
identification
and
WUPA
selection
procedure
READY 1
ANTICOLLISION
READ
from page 0
SELECT
cascade level 1
HLTA
READY 2
ANTICOLLISION
HLTA
READ
from page 0
SELECT
cascade level 2
ACTIVE
READ (16 Byte)
FAST_READ
WRITE,
COMPATIBILITY_WRITE
(4 Byte)
memory
operations
PWD_AUTH
GET_VERSION
READ_SIG
READ_CNT
AUTHENTICATED
aaa-008072
Remark: In all states, the command interpreter returns to the idle state on receipt of an unexpected
command. If the IC was previously in the HALT state, it returns to that state.
Fig 5. State diagram
NTAG213F_216F
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Product data sheet
COMPANY PUBLIC
Rev. 3.1 — 28 August 2013
262231
9 of 56
NXP [ NXP ]
