AT88SC0204CRF(2008) Просмотр технического описания (PDF) - Atmel Corporation

Номер в каталоге

Компоненты Описание

производитель

AT88SC0204CRF
(Rev.:2008)

CryptoRF Specification

Atmel Corporation 

AT88SC0104/0204/0404/0808/1616/3216/6416CRF

1.3 Communications

All personalization and communication with this device is performed through the RF interface.

The IC includes an integrated tuning capacitor, enabling it to operate with only the addition of a

single external coil antenna.

The RF communications interface is fully compliant with the electrical signaling and RF power

specifications in ISO/IEC 14443-2 for Type B only. Anticollision operation and frame formatting

are compliant with ISO/IEC 14443-3 for Type B only.

1.4 Scope

This CryptoRF Specification document includes all specifications for the normal mode of Cryp-

toRF operation. This document may be freely distributed without any formal user agreements.

The Authentication and Encryption modes of operation are not described in this document.

The Authentication and Encryption modes specifications are described in the document Cryp-

toRF Specification Addendum for Secure Applications, which is available only under Non-

Disclosure and Limited Licensing Agreements (NDA and LLA). Contact your regional Atmel

sales office to obtain this secure document.

1.5 Conventions

ISO/IEC 14443 nomenclature is used in this specification where applicable. The following

abbreviations are utilized throughout this document. Additional terms are defined in Annex A.

• PCD: Proximity Coupling Device – is the reader/writer and antenna.

• PICC: Proximity Integrated Circuit Card – is the tag/card containing the IC and antenna.

• RFU: Reserved for Future Use – is any feature, memory location, or bit that is held as

reserved for future use by the ISO standards committee or by Atmel.

• $xx: Hexadecimal Number – denotes a hex number “xx” (Most Significant Bit on left).

• xxxxb: Binary Number – denotes a binary number “xxxx” (Most Significant Bit on left).

Each command / response exchange between the PCD and PICC is formatted as shown in Fig-

ure 1-2. The bytes are shown in the order in which they are transmitted, with PCD transmissions

in the left column, and PICC transmissions in the right column.

Each byte contains one or more fields as indicated by lines drawn vertically within the byte. The

field in the left half of the byte is the upper nibble of the byte, and the field to the right is the lower

nibble of the byte. In Figure 1-2, five fields contain values ($1D, $00, $F, $51, $0), four fields

contain field names (“Addr”, “XX”, “CID”, “Data”), and four fields contain error detection codes

(CRC1, CRC2).

5

5276A–RFID–07/08

Share Link: