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 25 of 39
NXP Semiconductors
MF1S50yyX
MIFARE Classic 1K - Mainstream contactless smart card IC
Remark: The minimum required time between MIFARE Increment, Decrement, and
Restore part 1 and part 2 is the minimum required FDT according to Ref. 4
. There is no
maximum time specified.
Remark: The MIFARE Increment, Decrement, and Restore commands require a MIFARE
Transfer to store the value into a destination block.
Remark: The MIFARE Increment, Decrement, and Restore command part 2 does not
provide an acknowledgement, so the regular time out has to be used instead.
(1) Increment, Decrement and Restore part 2 does not acknowledge
Fig 19. MIFARE Increment, Decrement, Restore part 2
Table 23. MIFARE Increment, Decrement and Restore command
Name Code Description Length
Cmd C1h Increment 1 byte
Cmd C0h Decrement 1 byte
Cmd C2h Restore 1 byte
Addr - MIFARE source block address (00h to FFh) 1 byte
CRC - CRC according to Ref. 4
2 bytes
Data - Operand (4 byte signed integer) 4 bytes
NAK see Table 10
see Section 9.3 4-bit
Table 24. MIFARE Increment, Decrement and Restore 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
Increment,
Decrement, and
Restore part 1
71 μsT
TimeOut
71 μsT
TimeOut
5 ms
Increment,
Decrement, and
Restore part 2
71 μsT
TimeOut
71 μsT
TimeOut
5 ms
001aan00
9
CRCPCD Data
PICC ,,ACK''
538 μs
PICC ,,NAK''
NAK
Time out
T
TimeOut
T
NAK
59 μs