NTAG213F/216F
NXP Semiconductors
NFC Forum T2T IC with 144/888 bytes user memory and field detection
9. Command overview
NTAG21xF activation follows the ISO/IEC 14443 Type A. After NTAG21xF has been
selected, it can either be deactivated using the ISO/IEC 14443 HLTA command, or the
NTAG21xF commands (e.g. READ or WRITE) can be performed. For more details about
the tag activation refer to Ref. 1.
9.1 NTAG21xF command overview
All available commands for NTAG21xF are shown in Table 20.
Table 20. Command overview
Command[1]
ISO/IEC 14443
NFC FORUM
Command code
(hexadecimal)
Request
REQA
SENS_REQ
26h (7 bit)
52h (7 bit)
93h 20h
93h 70h
95h 20h
95h 70h
50h 00h
60h
Wake-up
WUPA
ALL_REQ
Anticollision CL1
Select CL1
Anticollision CL2
Select CL2
Halt
Anticollision CL1
SDD_REQ CL1
Select CL1
SEL_REQ CL1
Anticollision CL2
SDD_REQ CL2
Select CL2
SEL_REQ CL2
HLTA
SLP_REQ
GET_VERSION[2]
-
-
-
-
-
-
-
-
-
READ
READ
30h
FAST_READ[2]
WRITE
READ_CNT[2]
COMP_WRITE
PWD_AUTH[2]
READ_SIG[2]
-
3Ah
WRITE
A2h
-
-
-
-
39h
A0h
1Bh
3Ch
[1] Unless otherwise specified, all commands use the coding and framing as described in Ref. 1.
[2] This command is new in NTAG21xF compared to NTAG203F.
9.2 Timings
The command and response timings shown in this document are not to scale and values
are rounded to 1 s.
All given command and response times refer to the data frames including start of
communication and end of communication. They do not include the encoding (like the
Miller pulses). A NFC device data frame contains the start of communication (1 “start bit”)
and the end of communication (one logic 0 + 1 bit length of unmodulated carrier). A NFC
tag data frame contains the start of communication (1 “start bit”) and the end of
communication (1 bit length of no subcarrier).
The minimum command response time is specified according to Ref. 1 as an integer n
which specifies the NFC device to NFC tag frame delay time. The frame delay time from
NFC tag to NFC device is at least n=9 (approximately 87s). The maximum command
response time is specified as a time-out value. Depending on the command, the TACK
value specified for command responses defines the NFC device to NFC tag frame delay
NTAG213F_216F
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© NXP B.V. 2013. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.1 — 28 August 2013
262231
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NXP [ NXP ]
