mf1s503x NXP Semiconductors, mf1s503x Datasheet - Page 6

• Manufacturer Part Number: mf1s503x
• Description: Mf1s503x Mifare Classic 1k - Mainstream Contactless Smart Card Ic For Fast And Easy Solution Development
• Manufacturer: NXP Semiconductors

NXP Semiconductors
MF1S503x
Product data sheet
PUBLIC
8.2.3 Select card
8.2.4 Three pass authentication
With the select card command the reader selects one individual card for authentication
and memory related operations. The card returns the Select Acknowledge (SAK) code
which determines the type of the selected card, see
the document
After selection of a card the reader specifies the memory location of the following memory
access and uses the corresponding key for the three pass authentication procedure. After
a successful authentication all memory operations are encrypted.
Fig 4.
BLOCK
READ
Three pass authentication
POR
REQUEST STANDARD
Ref.
BLOCK
WRITE
All information provided in this document is subject to legal disclaimers.
7.
Rev. 3.1 — 21 February 2011
3 PASS AUTHENTICATION
ON SPECIFIC SECTOR
ANTICOLLISION LOOP
DECRE-
MENT
GET IDENTIFIER
MIFARE Classic 1K - Mainstream contactless smart card IC
SELECT CARD
Transaction Sequence
194031
TRANSFER
INCRE-
MENT
REQUEST ALL
STORE
RE-
Section
HALT
9.4. For further details refer to
~2.5 ms
+~1 ms
~2 ms
~2.5 ms
~6.0 ms
~2.5 ms
~4.5 ms
Identification and Selection
Typical Transaction Time
MF1S503x
Authentication
© NXP B.V. 2011. All rights reserved.
Operations
Procedure
Procedure
Memory
without collision
for each collision
read block
write block
de-/increment
transfer
001aan017
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