AT88RF04C-MY1G データシートの表示（PDF） - Atmel Corporation

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AT88RF04C-MY1G

CryptoRF® Specification

Atmel Corporation 

6.9.2.

Command Field Description

CID:

The Card ID assigned by the ATTRIB command.

PARAM:

The PARAM byte selects the type of write operation to be performed. 88RF PICCs do not support anti-

tearing writes to the configuration memory.

Table 33. PARAM byte options for the Write System Zone command

Command

PARAM

ADDR

“L”

Write System Zone

$00

Address

# of bytes – 1

Write System Zone w/ AT

$80

Address

# of bytes – 1

Write Fuse Byte

$01

Fuse addr

$00

All Other Values Are Not Supported

DATA

“L + 1” bytes

“L + 1 bytes”

1 byte

ADDR:

L:

The starting address of the data to write.

The number of bytes to read minus 1. L cannot exceed the physical page size of the memory. In anti-

tearing mode the maximum number of bytes that can be written is 8 bytes.

Table 34. Write Characteristics of CryptoRF Configuration Memory

CryptoRF

Part Number

Write Characteristics

Standard Write

Anti-Tearing Write

AT88RF04C

1 to 16 Bytes

Not Supported

AT88SC0808CRF

1 to 16 Bytes

1 to 8 Bytes

AT88SC1616CRF

1 to 16 Bytes

1 to 8 Bytes

AT88SC3216CRF

1 to 32 Bytes

1 to 8 Bytes

AT88SC6416CRF

1 to 32 Bytes

1 to 8 Bytes

DATA:

CRC:

The data bytes to be written into configuration memory.

Communication error detection bytes.

6.9.3.

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.

40 AT88SC0808/1616/3216/6416CRF, AT88RF04C

5276C–RFID–3/09

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