From d9bfd8a2d6dd7153ddfbc90c180f9166f1fed2e1 Mon Sep 17 00:00:00 2001 From: Marc de Verdelhan Date: Sat, 9 May 2020 14:37:06 +0200 Subject: [PATCH] Update README.md --- README.md | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 124d779..8643bfc 100644 --- a/README.md +++ b/README.md @@ -32,7 +32,19 @@ byte[] read8Response = ...; // Send the READ8 command and get the 8 bytes ## About the Topaz512 tags -TODO +The BCM20203T512 (Topaz512) tags are [NFC](http://en.wikipedia.org/wiki/Near_field_communication) tags designed by [Broadcom Inc.](https://en.wikipedia.org/wiki/Broadcom_Inc.). They are [NFC Forum](https://nfc-forum.org/) Type 1 compliant tags. + +### Tag features + + * Compliant with the NFC Forum Type 1 tag format + * Compatible with the [ISO/IEC 14443](https://en.wikipedia.org/wiki/ISO/IEC_14443):2001, Parts 2 and 3; ISO/IEC 14443 Type A modulation scheme + * Contactless operating Frequency: 13.56 MHz + * Read/write operation (8-byte read/write commands) + * Configurable for One Time Programmable (OTP) and Write Once Read Many (WORM) operation + * Data communication rate: 106 kbps + * Communication robustness: collision detection, 16-bit CRC integrity checking + * EEPROM based user read/write memory area organized as blocks of 8 bytes (7 bytes of Unique Identification (UID) number for use in data authentication/anticloning, 480 bytes of user read/write memory, 64 bits (8 bytes) of OTP memory) + * All memory areas are individually one time lockable by RF command (to produce read-only functionality) ## Donations