Datasheet

MF1S50YYX All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.0 — 2 May 2011
196330 26 of 39
NXP Semiconductors
MF1S50yyX
MIFARE Classic 1K - Mainstream contactless smart card IC
11.5 MIFARE Transfer
The MIFARE Transfer requires a destination block address, and writes the value stored in
the volatile memory into one MIFARE Classic block. The command structure is shown in
Figure 20
and Table 25.
Table 26
shows the required timing.
Fig 20. MIFARE Transfer
Table 25. MIFARE Transfer command
Name Code Description Length
Cmd B0h Write value into destination block 1 byte
Addr - MIFARE destination block address
(00h to FFh)
1 byte
CRC - CRC according to Ref. 4
2 bytes
NAK see Table 10
see Section 9.3 4-bit
Table 26. MIFARE Transfer timing
These times exclude the end of communication of the PCD.
T
ACK
min T
ACK
max T
NAK min
T
NAK max
T
TimeOut
Transfer 71 μsT
TimeOut
71 μsT
TimeOut
10 ms
001aan01
5
CRCAddrPCD Cmd
PICC ,,ACK''
368 μs
PICC ,,NAK''
NAK
Time out
T
TimeOut
T
NAK
T
ACK
59 μs
ACK
59 μs