MF1S5009 查看數據表（PDF） - NXP Semiconductors.

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MF1S5009

Mainstream contactless smart card IC for fast and easy solution development

NXP Semiconductors. 

NXP Semiconductors

MF1S5009

Mainstream contactless smart card IC

9.7.1 Access conditions

The access conditions for every data block and sector trailer are defined by 3 bits, which

are stored non-inverted and inverted in the sector trailer of the specified sector.

The access bits control the rights of memory access using the secret keys A and B. The

access conditions may be altered, provided one knows the relevant key and the current

access condition allows this operation.

Remark: With each memory access the internal logic verifies the format of the access

conditions. If it detects a format violation the whole sector is irreversible blocked.

Remark: In the following description the access bits are mentioned in the non-inverted

mode only.

The internal logic of the MF1S5009 ensures that the commands are executed only after

an authentication procedure or never.

Table 5. Access conditions

Access Bits

Valid Commands

C13 C23 C33

read, write

→

C12 C22 C32

read, write, increment, decrement, →

transfer, restore

C11 C21 C31

read, write, increment, decrement, →

transfer, restore

C10 C20 C30

read, write, increment, decrement, →

transfer, restore

Block

3

2

Description

sector trailer

data block

1

data block

0

data block

Byte Number

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Key A

Access Bits

Key B (optional)

Bit 7

6

5

4

3

2

1

0

Byte 6

C23

C22

C21

C20

C13

C12

C11

C10

Byte 7

C13

C12

C11

C10

C33

C32

C31

C30

Byte 8

C33

C32

C31

C30

C23

C22

C21

C20

Byte 9

001aam207

Fig 10. Access conditions

MF1S5009

Product data sheet

PUBLIC

All information provided in this document is subject to legal disclaimers.

Rev. 3 — 27 July 2010

189131

© NXP B.V. 2010. All rights reserved.

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