AT88RF04C-MY1G View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT88RF04C-MY1G

CryptoRF® Specification

Atmel Corporation 

AT88SC0808/1616/3216/6416CRF, AT88RF04C

6.19.3. Response Field Descriptions

CID:

The PICC transmits its assigned card ID in the response.

ACK:

Acknowledge, the command executed correctly.

NACK:

Not Acknowledge, the command did not execute correctly.

STATUS: PICC status code.

CRC:

Communication error detection bytes.

6.19.4. Error Handling

If a Check Password command containing transmission errors is received by the PICC, it is ignored and no response is

sent. The PICC reports errors in the status byte of the response.

Table 55. Status Codes returned in the Check Password response

Error/Status Message

No errors

Password Index Invalid

Check Password Failure

Memory Access Error (Security Operation)

Memory Access Error

Status Code

$00

$A1

$D9

$F9

$EE

Type

ACK

NACK

NACK

NACK

ACK/NACK

6.19.5. Notes

The Check Password command is identical for 88SC and 88RF CryptoRF PICCs. Password indexes of $03 to $06, and

$13 to $16 will be NACKed by 88RF PICCs.

65

5276C–RFID–3/09

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