AT88RF04C-MY1G View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT88RF04C-MY1G

CryptoRF® Specification

Atmel Corporation 

7. Transaction Flow

Figure 6. Flowchart of a Typical CryptoRF Transaction

Polling

(REQB/WUPB)

Select Card

(ATTRIB)

Halt

(HLTB)

Anticollision Complete

Normal Mode

Mutual Authentication

(optional)

Enter Authentication Mode

Encryption Activation

(optional)

Enter Encryption Mode

Set

User Zone

Read

Configuration

Memory

Write

Configuration

Memory

Check

Password

Read

User

Memory

Read

Checksum

Write

User

Memory

Send

Checksum

Deselect

or

Idle

In a typical CryptoRF transaction the host performs anticollision, selects a User Zone, and reads or writes the user

memory. When a User Zone requires a password, authentication, or encryption the host performs the required security

operation before accessing the User Zone.

Note: The Set User Zone command may be sent before or after the security operation.

66 AT88SC0808/1616/3216/6416CRF, AT88RF04C

5276C–RFID–3/09

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