mf1s503x NXP Semiconductors, mf1s503x Datasheet - Page 10

• 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
8.6.3 Sector trailer (block 3)
The sector trailer is the last block (block 3) in one sector. Each sector has a sector trailer
containing the
If key B is not needed, the last 6 bytes of the sector trailer can be used as data bytes. The
access bits for the sector trailer have to be configured accordingly, see
Byte 9 of the sector trailer is available for user data. For this byte the same access rights
as for byte 6, 7 and 8 apply.
When the sector trailer is read, the key bytes are blanked out by returning logical zeros. If
Key B is configured to be readable, the data stored in bytes 10 to 15 is returned, see
Section
All keys are set to FFFFFFFFFFFFh at chip delivery.
Fig 8.
•
•
secret keys A and B (optional), which return logical “0”s when read and
the access conditions for the blocks of that sector, which are stored in bytes 6...9. The
access bits also specify the type (data or value) of the data blocks.
8.7.2.
Sector trailer
Byte Number
Description
All information provided in this document is subject to legal disclaimers.
Rev. 3.1 — 21 February 2011
0
MIFARE Classic 1K - Mainstream contactless smart card IC
1
2
Key A
194031
3
4
5
6
Access Bits
7
8
9
10
11
Key B (optional)
12
MF1S503x
13
© NXP B.V. 2011. All rights reserved.
Section
001aan013
14
15
8.7.2.
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