MF1ICS50_001056

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Product data sheet

PUBLIC

Rev. 5.6 — 24 November 2010

001056

10 of 20

NXP Semiconductors

MF1ICS50

Functional specification

6.7 Memory access

Before any memory operation can be carried out, the card has to be selected and

authenticated as described previously.The possible memory operations for an addressed

block depend on the key used and the access conditions stored in the associated sector

trailer.

Fig 8.

Memory access

Identification and Selection Procedure

Authentication Procedure

Memory Operations

Value Block

Read, Write, Increment, Decrement, Transfer, Restore

Read/Write Block

Read, Write

POR

New Command without

Change of Sector

Change of Sector

Halt