Section 1
Introduction
Features
AT88RF1354 Instruction Set Examples
CryptoRF Instruction Set Examples
AT88RF1354 Register Definitions Summary
Initialization
Procedure
Description
This document describes the instruction set examples for the AT88RF1354 13.56 MHz ISOI/IEC
14443 Type B Reader IC and the CryptoRF PICC. Device initialization examples are included for
reference by the software developer or embedded systems programmer using this RF reader.
This specification is formatted as a reference document, with each command description and
register definition on a separate page.
1-1
8586A—RFID—5/09
1.1
Product Description
The AT88RF1354 is a smart, high performance ISO/IEC 14443 Type B RF Reader IC. The
AT88RF1354 communicates with RFID Transponders or Contactless Smartcards using the
industry standard ISO/IEC 14443-2 Type B signal modulation scheme and ISO/IEC 14443-3 Type
B frame format. Data is exchanged half duplex at a 106k bit per second rate. A two byte CRC_B
provides communication error detection capability.
The AT88RF1354 is compatible with 3.3 V and 5 V host microcontrollers with two-wire or SPI
serial interfaces. In two-wire interface mode the AT88RF1354 operates as a TWI slave and
requires four microcontroller pins for data communication and handshaking. In SPI interface
mode the AT88RF1354 operates as a mode 0 SPI slave and requires six microcontroller pins for
data communication and handshaking.
The AT88RF1354 device performs all RF communication packet formatting, decoding, and
communication error checking. The host microcontroller is not burdened with RF encoding,
timing, or protocol functions as these tasks are all performed by the AT88RF1354 device. To
communicate with a RFID transponder the host microcontroller sends a data packet to the
AT88RF1354 for transmission over the RF communications channel. When the response is
received from the transponder, the AT88RF1354 extracts the data packet and returns it to the
host microcontroller.
1.2
System Diagram
Figure 1.
Communications in an RFID System
Serial Interface
RF Communications
Host
Microcontroller
Card
Reader IC