NT3H2211W0FHKH Datasheet, PDF (55/77 Pages) NXP Semiconductors – NTAG I2C plus, NFC Forum Type 2 Tag compliant IC with I2C interface

NXP Semiconductors
NT3H2111/NT3H2211
NFC Forum Type 2 Tag compliant IC with I²C interface
10.12 SECTOR SELECT
The SECTOR SELECT command consists of two commands packet: the first one is the
SECTOR SELECT command (C2h), FFh and CRC. Upon an ACK answer from the Tag,
the second command packet needs to be issued with the related sector address to be
accessed and 3 bytes RFU.
To successfully access to the requested memory sector, the tag shall issue a passive
ACK, which is sending NO REPLY for more than 1 ms after the CRC of the second
command set.
The SECTOR SELECT command is shown in Figure 28 and Table 35.
Table 36 shows the required timing.
NFC device Cmd FFh CRC
SECTOR SELECT packet 1
NTAG I²C ,,ACK''
NTAG I²C ,,NAK''
368 μs
T_ACK
ACK
57 μs
T_NAK
NAK
57 μs
Time out
T_TimeOut
NFC device SecNo 00h 00h 00h CRC
SECTOR SELECT packet 2
NTAG I²C ,,ACK''
537 μs
(no reply)
>1ms
Passive ACK
NTAG I²C ,,NAK''
Fig 28. SECTOR_SELECT command
(any reply)
<1ms
NAK
57 μs
Table 35.
Name
Cmd
FFh
CRC
SecNo
NAK
SECTOR_SELECT command
Code
Description
C2h
sector select
-
-
CRC according to Ref. 1
-
Memory sector to be selected
(00h - FEh)
see Table 17
see Section 10.3
aaa-014051
Length
1 byte
1 byte
2 bytes
1 byte
4 bit
NT3H2111/NT3H2211
Product data sheet
COMPANY PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.0 — 3 February 2016
359930
© NXP Semiconductors N.V. 2016. All rights reserved.
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