Datasheet

NTAG203 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet
COMPANY PROPRIETARY
Rev. 3.0 — 17 October 2011
213830 21 of 30
NXP Semiconductors
NTAG203
NFC Forum Type 2 Tag compliant IC with 144 bytes user memory
8.8.8 COMPATIBILITY WRITE
Description: The COMPATIBILITY WRITE command was implemented to accommodate
the established NFC device infrastructure. Even though 16 bytes are transferred to the
NTAG203, only the least significant 4 bytes (bytes 0 to 3) will be written to the specified
address. It is recommended to set the remaining bytes 4 to 15 to all ‘0’.
Table 16. COMPATIBILITY WRITE
Code Parameter/ARG Data Integrity mechanism Response
A0h ADR: ‘02h’ to ‘29h’ 16 Byte Parity, CRC ACK or NAK
Remark: Time units are not to scale and rounded off to 10 s
Fig 18. COMPATIBILITY WRITE
aaa-001152
CMD
350 ms
RWD
command
time
NTAG
response
90 ms 1540 ms
90 ms
4110 ms
50 ms
50 ms
50 ms
A0
ARG CRC
ADR
C0 C1
16 byte data
...
CRC
D15
D0 C0 C1
NAK NAK
ACK
50 ms
ACK