Method and apparatus for RFID tag wherein memory of RFID tag is partitioned into two sections for reading using wireless interface and writing using bus
Methods and apparatus for correlating physical and logical attributes of devices include associating logical-tags (L-tags) and physical-tags (P-tags) with electronic devices. A P-tag includes a P-tag identifier, which can be read by a P-tag reading device, regardless of whether power is applied to the electronic device. In one embodiment, a system includes a P-tag comprising a radio frequency identification (RFID) tag having a non-volatile memory to store physical and logical attribute information; and an electronic device associated with the RFID tag, the electronic device having a processor and a bus, and being communicatively coupled to the RFID tag over the bus, the processor to execute instructions to read information from and write information to the non-volatile memory of the RFID tag.
1. A system comprising:
a radio frequency identification (RFID) tag comprising a non-volatile memory to store physical and logical attribute information;
an electronic device associated with the RFID tag, the electronic device having a processor and a bus, and being communicatively coupled to the RFID tag over the bus, the processor to execute instructions to read information from and write information to the non-volatile memory of the RFID tag; and
a RFID tag reading device to read information from and write information to the non-volatile memory of the RFID tag over a wireless interface;
wherein the non-volatile memory of the RFID tag is partitioned into at least two sections, the electronic device to write to a first section using the bus and the RFID tag reading device to write to a second section using the wireless interface.
2. The system of claim 1 , wherein the RFID tag reading device reads information from the RFID tag when the electronic device associated with the RFID tag is powered off.
3. The system of claim 1 , wherein the bus comprises a system management bus (SMBUS).
4. The system of claim 1 , wherein the RFID tag is attached to the electronic device.
5. The system of claim 1 , wherein the electronic device comprises a computer system, and the RFID tag is physically attached to a motherboard of the computer system.
6. A method comprising:
storing at least one of physical and logical attribute information of an electronic device in a second section of a non-volatile memory on an RFID tag using an RFID tag reading/writing device over a wireless interface;
associating the RFID tag with the electronic device;
storing at least one of physical and logical attribute information in a first section of the non-volatile memory on the RFID tag by the electronic device over a bus; and
reading the RFID tag by the RFID tag reading/writing device over the wireless interface to obtain the at least one of physical and logical attribute information.
7. The method of claim 6 , further comprising reading at least one of physical and logical attribute information stored on the RFID tag by the electronic device by accessing the non-volatile memory of the RFID tag over the bus communicatively coupling the RFID tag and the electronic device.
8. The method of claim 6 , wherein the electronic device comprises a computer system, and the bus comprises a system management bus (SMBUS).