Quickcool Radio modules KEYFOB-MF1K-02PVC-WHEP Data Sheet
Product codes
KEYFOB-MF1K-02PVC-WHEP
MF1S50YYX
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© NXP B.V. 2011. All rights reserved.
Product data sheet
COMPANY PUBLIC
COMPANY PUBLIC
Rev. 3.0 — 2 May 2011
196330
24 of 39
NXP Semiconductors
MF1S50yyX
MIFARE Classic 1K - Mainstream contactless smart card IC
Remark: The minimum required time between MIFARE Write part 1 and part 2 is the
minimum required FDT according to
minimum required FDT according to
. There is no maximum time specified.
11.4 MIFARE Increment, Decrement and Restore
The MIFARE Increment requires a source block address and an operand. It adds the
operand to the value of the addressed block, and stores the result in a volatile memory.
operand to the value of the addressed block, and stores the result in a volatile memory.
The MIFARE Decrement requires a source block address and an operand. It subtracts the
operand from the value of the addressed block, and stores the result in a volatile memory.
operand from the value of the addressed block, and stores the result in a volatile memory.
The MIFARE Restore requires a source block address. It copies the value of the
addressed block into a volatile memory.
addressed block into a volatile memory.
All three commands are responding with a NAK to the first command part if the addressed
block is not formatted to be a valid value block, see
block is not formatted to be a valid value block, see
and
shows the required timing.
Table 22.
MIFARE Write 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
Write part 1
71
μs
T
TimeOut
71
μs
T
TimeOut
5 ms
Write part 2
71
μs
T
TimeOut
71
μs
T
TimeOut
10 ms
Fig 18. MIFARE Increment, Decrement, Restore part 1
001aan015
CRC
Addr
PCD
Cmd
PICC ,,ACK''
368
μs
PICC ,,NAK''
NAK
Time out
T
TimeOut
T
NAK
T
ACK
59
μs
ACK
59
μs