Quickcool Radio modules KEYFOB-MF1K-02PVC-WHEP Data Sheet
Product codes
KEYFOB-MF1K-02PVC-WHEP
MF1S50YYX
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Product data sheet
COMPANY PUBLIC
COMPANY PUBLIC
Rev. 3.0 — 2 May 2011
196330
11 of 39
NXP Semiconductors
MF1S50yyX
MIFARE Classic 1K - Mainstream contactless smart card IC
8.7 Memory access
Before any memory operation can be done, the card has to be selected and authenticated
as described in
as described in
. The possible memory operations for an addressed block
depend on the key used during authentication and the access conditions stored in the
associated sector trailer.
associated sector trailer.
Table 5.
Memory operations
Operation
Description
Valid for Block Type
Read
reads one memory block
read/write, value and sector trailer
Write
writes one memory block
read/write, value and sector trailer
Increment
increments the contents of a block and
stores the result in the internal data
register
stores the result in the internal data
register
value
Decrement
decrements the contents of a block and
stores the result in the internal data
register
stores the result in the internal data
register
value
Transfer
writes the contents of the internal data
register to a block
register to a block
value
Restore
reads the contents of a block into the
internal data register
internal data register
value