AN3163 Datasheet, PDF (1/13 Pages) STMicroelectronics – Configuring your ISO 15693 reader

AN3163
Application note
Configuring your ISO 15693 reader
to support the M24LRxx-R and M24LRxxE-R devices
Introduction
The M24LRxx-R or M24LRxxE-R device is a dual-interface EEPROM from
STMicroelectronics. It consists of an EEPROM memory bank that can be accessed via
either a wired interface or an RF interface. Different sizes of memory exist: 4-Kbit, 16-Kbit,
and 64-Kbit.
Figure 1. Dual-interface EEPROM
Note:
The RF interface of the M24LRxx-R or M24LRxxE-R device:
● is based on a passive RFID technology supporting the ISO 15693 standard
● communicates with ISO 15693 RF systems (called RFID readers)
● only requires an antenna to operate. The energy and data come from the RFID reader.
The aim of this application note is to explain the software upgrades to be brought to
standard ISO 15693 RF readers for them to support the M24LRxx-R or M24LRxxE-R IC. It
also provides a short list of these upgrades. The inventory commands remain unchanged.
Access to the IC information and memory requires a dedicated management of the
Request_flag and addressing format.
To benefit from the M24LRxx advanced features, you have to implement the corresponding
custom commands.
Reference documents available from www.st.com
■ M24LRxx-R or M24LRxxE-R application software user guide.
Table 1 lists the products concerned by this application note.
Table 1. Applicable products
Type
Applicable products
Dual interface EEPROMs M24LRxx-R, M24LRxxE-R
The standard M24LRxx-R and energy-harvesting M24LRxxE-R devices will be referred to
as M24LRxx devices throughout the document.
October 2012
Doc ID 17157 Rev 2
1/13
www.st.com