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AT88SC3216CRF-MY1

CryptoRF® Specification

Atmel Corporation 

AT88SC0808/1616/3216/6416CRF, AT88RF04C

4. Command Set

The CryptoRF command set contains two types of commands: Anticollision commands, and Active State commands.

Anticollision commands are explicitly defined in ISO/IEC 14443-3:2001. The CryptoRF Active State commands are

Atmel defined commands that are compliant with the ISO/IEC 14443-3:2001 requirements.

The CryptoRF Active State commands contain the CID code that is assigned to a card when it is selected during the

anticollision process. See the ATTRIB command for coding of the CID bits.

Table 3.

Bit 7

0

0

0

Coding of the Command Byte for the Anticollision Command Set

Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Command Name

0

0

0

0

1

0

1 REQB/WUPB

Slot Number

0

1

0

1 Slot MARKER

0

0

1

1

1

0

1 ATTRIB

1

0

1

0

0

0

0 HLTB

Hexadecimal

$05

$s5

$1D

$50

Table 4. Coding of the Command byte for the CryptoRF Active State Command Set.

Bit 7

Bit 6 Bit 5

CID

CID

CID

CID

CID

CID

CID

CID

CID

CID

Bit 4

Bit 3 Bit 2 Bit 1 Bit 0 Command Name

0

0

0

1 Set User Zone

0

0

1

0 Read User Zone

0

0

1

1 Write User Zone

0

1

0

0 Write System Zone

0

1

1

0 Read System Zone

1

0

0

0 Verify Crypto

1

0

0

1 Send Checksum

1

0

1

0 DESELECT

1

0

1

1 IDLE

1

1

0

0 Check Password

All Other Values Are Not Supported

Hexadecimal

$c1

$c2

$c3

$c4

$c6

$c8

$c9

$cA

$cB

$cC

9

5276C–RFID–3/09

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