Product Data Sheet

MF1S50yyX_V1 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.0 — 3 March 2014
279230 19 of 40
NXP Semiconductors
MF1S50yyX/V1
MIFARE Classic EV1 1K - Mainstream contactless smart card IC
10.1.2 Anti-collision and Selection
Depending on the chosen personalization option there are certain possibilities to perform
anti-collision and selection. To bring the MIFARE Classic into the ACTIVE state according
to ISO/IEC 14443-3, the following sequences are available.
Sequence 1: ISO/IEC 14443-3 compliant anti-collision and selection using the cascade
level 1 followed by the cascade level 2 SEL command
Sequence 2: using cascade level 1 anti-collision and selection procedure followed by a
Read command from block 0
Sequence 3: ISO/IEC 14443-3 compliant anti-collision and selection using the cascade
level 1 SEL command
Remark: The Read from Block 0 in Sequence 2 does not require a prior authentication to
Sector 0 and is transmitted in plain data. For all other sequences, the readout from Block
0 in Sector 0 is encrypted and requires an authentication to that sector.
Remark: The settings done with Personalize UID Usage do not change the ATQA coding.
Fig 12. Personalize UID Usage
Table 13. Personalize UID Usage command
Name Code Description Length
Cmd 40h Set anti-collision, selection and
authentication behaviour
1 byte
Type - Encoded type of UID usage:
UIDF0:00h
UIDF1:40h
UIDF2:20h
UIDF3:60h
1 byte
CRC - CRC according to Ref. 4 2 bytes
ACK, NAK see Table 10
see Section 9.3 4-bit
Table 14. Personalize UID Usage timing
T
ACK
min T
ACK
max T
NAK min
T
NAK max
T
TimeOut
Personalize UID Usage n=9 T
TimeOut
n=9 T
TimeOut
10 ms