EM MICROELECTRONIC - MARIN SA 604004 Application Note 604004 Title: Multi-vendor Chip-based Serialization (MCS) Using EM Gen2 Devices Product Family: RFID Part Number: Keywords: Gen2 – MCS - Serialization Date: August 28, 2012 1. Introduction .................................................................................................................................................................... 2 2. Chip-based Serialization ................................................................................................................................................ 2 3. MCS Serial Number for EM Gen2 Chips ........................................................................................................................ 2 4. Pre-encoded EPC Memory for SGTIN-96 Encoding Scheme ........................................................................................ 3 Copyright 2012, EM Microelectronic-Marin SA 604004.doc, Version 1.0, 11-Sep-12 1 www.emmicroelectronic.com 420010-D01, 2.0 604004 Introduction Welcome to the EM application note for Multi-vendor Chip-based Serialization (MCS) using EM Gen2 devices. The Serialized Global Trade Item Number (SGTIN) is the RFID equivalent to a product barcode with the addition of a unique serial number for the product. The most common form of SGTIN uses numeric serialization and is represented using the SGTIN-96 encoding scheme. Chip-based Serialization Most Gen2 chips manufactured today contain a unique chip serial number included within the TID memory. The chip serial number is written to TID memory during manufacturing and then permalocked to be made unalterable after delivery to customers. The concept for chip-based serialization is to use the unique TID information in a Gen2 chip to create a unique MCS serial number regardless of the chip manufacturer. The length of the MCS serial number is 38 bits and corresponds to the length of a serial number used for the SGTIN-96 encoding scheme. The 3 MSB’s of the MCS serial number are used for the MCS header to identify the chip manufacturer. The remaining 35 bits are used to uniquely identify a Gen2 chip from the chip manufacturer for all models of Gen2 chips that support MCS. The MCS header values known to be in use so far are the following: Header Value (binary) 000 001 010 011 100 101 110 111 Gen2 Chip Manufacturer unused unused unused unused EM Microelectronic - Marin Impinj Alien Technology NXP Semiconductors MCS Serial Number for EM Gen2 Chips EM Gen2 chips are manufactured using several TID formats that comply with the EPCglobal Tag Data Standards. All formats have the common fields for Allocation Class, Tag Mask Designer Identification (MDID), and Tag Model Number. The 12-bit Tag Model Number is partitioned into three fields by EM to implement a 6-bit MCS Identifier, a 3-bit MCS Product number, and a 3-bit Version number. Only EM chips having an MCS Identifier of ‘000010’ can support the generation of MCS serial numbers. The full MCS serial number (MSB to LSB) is constructed as follows: MCS serial number (38 bits) = MCS header (3 bits) + MCS Product (3 bits) + IC Serial Number (32 bits) TID Short Format with Serialization (MDID = 00Bh) TID Word TID Bank Address (hex) 0 00 – 0F 1 10 – 1F 2 3 20 – 2F 30 – 3F MSB 0 1 1 1 2 3 4 0 Copyright 2012, EM Microelectronic-Marin SA 604004.doc, Version 1.0, 11-Sep-12 1 1 0 6 7 8 9 A B C D E LSB F Tag MDID MSB’s 0 0 0 0 0 0 0 0 Tag Model Number MCS Identifier MCS Product Version 0 0 0 1 0 x x x v v v IC Serial Number [31:16] IC Serial Number [15:0] Allocation Class (E2h) 1 0 0 0 Tag MDID LSB’s 1 5 1 2 0 www.emmicroelectronic.com 420010-D01, 2.0 604004 TID Extended Format with Serialization (MDID = 80Bh) TID Word TID Bank Address (hex) 0 00 – 0F 1 10 – 1F 2 3 4 5 20 – 2F 30 – 3F 40 – 4F 50 – 5F MSB 0 1 1 1 2 3 4 5 0 1 1 7 8 9 A B C D E LSB F Tag MDID MSB’s 1 0 0 0 0 0 0 0 Tag Model Number MCS Identifier MCS Product Version 0 0 0 1 0 x x x v v v XTID Null IC Serial Number [31:16] IC Serial Number [15:0] Allocation Class (E2h) 1 0 0 0 Tag MDID LSB’s 1 6 0 1 0 Pre-encoded EPC Memory for SGTIN-96 Encoding Scheme EM Gen2 chips that support MCS also pre-encode a portion of the EPC memory during chip manufacturing. The EPC memory is initialized to all zeroes and then programmed to support rapid encoding of an SGTIN-96 by setting the PC value for 6 words (96 bits) and setting the SGTIN-96 Serial Number to the MCS serial number. Use of the MCS serial number provided by EM is optional. If a different serialization scheme is desired, then simply overwrite the MCS serial number in EPC memory with another value. EPC Memory with SGTIN-96 Encoding Scheme (EPC Header = 30h) EPC Word 0 EPC Bank Address (hex) 00 – 0F 1 10 – 1F MSB 0 1 2 3 4 5 6 7 8 9 A B C D E 0 0 LSB F StoredCRC (computed at power-up) StoredPC Length 0 0 1 1 0 UMI XI T 0 0 0 Attribute Bits 0 0 2 20 – 2F 3 30 – 3F GTIN [41:26] 4 40 – 4F GTIN [25:10] 5 50 – 5F 6 60 – 6F Serial Number [31:16] 7 70 – 7F Serial Number [15:0] EPC Header Filter GTIN [9:0] 0 0 0 Partition 0 GTIN [43:42] Serial Number [37:32] All bits set to zero during chip manufacturing All bits set during chip manufacturing to support SGTIN-96 encoding EM Microelectronic-Marin SA (“EM”) makes no warranties for the use of EM products, other than those expressly contained in EM's applicable General Terms of Sale, located at http://www.emmicroelectronic.com. EM assumes no responsibility for any errors which may have crept into this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property rights of EM are granted in connection with the sale of EM products, neither expressly nor implicitly. In respect of the intended use of EM products by customer, customer is solely responsible for observing existing patents and other intellectual property rights of third parties and for obtaining, as the case may be, the necessary licenses. Important note: The use of EM products as components in medical devices and/or medical applications, including but not limited to, safety and life supporting systems, where malfunction of such EM products might result in damage to and/or injury or death of persons is expressly prohibited, as EM products are neither destined nor qualified for use as components in such medical devices and/or medical applications. The prohibited use of EM products in such medical devices and/or medical applications is exclusively at the risk of the customer Copyright 2012, EM Microelectronic-Marin SA 604004.doc, Version 1.0, 11-Sep-12 3 www.emmicroelectronic.com 420010-D01, 2.0