AT88RF04C-MY1G View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT88RF04C-MY1G

CryptoRF® Specification

Atmel Corporation 

AT88SC0808/1616/3216/6416CRF, AT88RF04C

6.3. Read User Zone Command [$c2]

The Read User Zone command reads data from the currently selected User Zone. See Read User Zone (Large

Memory) command for the AT88SC6416CRF read command information.

Reader

PICC

Command >

PARAM = $00 >

CID

$2

PARAM

ADDR

“L”

CRC1

CRC2

Echo Command >

CID

$2

NACK

STATUS

CRC1

CRC2

FAILURE RESPONSE

< Error Code

Echo Command >

CID

$2

ACK

DATA 1

DATA 2

……….

DATA “L”

DATA “L+1”

STATUS

CRC1

CRC2

SUCCESS RESPONSE

<Status Code

6.3.1. Operation

The Read User Zone command reads data from the device's currently selected User Zone.

The data byte address is internally incremented as each byte is read from memory. Reading beyond the end of the

current User Zone is prohibited. Only PICCs in the Active State are permitted to answer this command.

If Encryption Communication Security is active the DATA bytes are encrypted; no other bytes are encrypted. In the

Normal and Authentication Communication Security modes none of the bytes are encrypted.

23

5276C–RFID–3/09

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