Method and apparatus for robust addressing on a dynamically configurable bus

• US 20020108007A1
• Filed: 03/29/2002
• Published: 08/08/2002
• Est. Priority Date: 12/29/1997
• Status: Active Grant

• Current Assignee: Ronald L. Mosgrove
• Original Assignee: Ronald L. Mosgrove
• Inventors: Mosgrove, Ronald L.
• Granted Patent: US 7,206,867 B2
• Time in Patent Office: Days
• US Class Current: 710/104
• CPC Class Codes: G06F 13/404 with address mapping

Abstract

The invention in one embodiment is a dynamically configurable bus system, including a dynamic bus; a bus device having a first guaranteed unique identifier and a first physical address on the dynamic bus; and a bus manager having a second guaranteed unique identifier and a second physical address on the dynamic bus. The bus manager maps the first and second guaranteed unique identifiers to the first and second physical addresses, respectively.

Claims

1. A bus system, comprising:

a bus;

a first bus device having a guaranteed unique identifier installed by a manufacturer and a first physical address on the bus;

a bus manager to map the guaranteed unique identifier to the physical address in automatic response to a configuration event causing a change in the physical address; and

a second bus device having a second physical address on the bus and a map used by the bus manager to map the guaranteed unique identifier to the physical address;

wherein the second bus device is a separate device from the first bus device and from the bus manager.

2. The bus system of claim 1, wherein the bus device is a separate device from the first bus device from the bus manager.

3. The bus system of claim 1, wherein the configuration event includes one of powering on a bus, resetting a bus, insertion of the first bus device, and removal of a second bus device.

4. The bus system of claim 1, wherein the bus manager comprises one of a workstation and a personal computer.

5. The bus system of claim 1, wherein the bus manager is to map the guaranteed unique identifier and the respective physical address into at least one of an array, a doubly linked list, a tree, a table, and a file.

6. The bus system of claim 1, wherein the map is bi-directional.

7. A bus system, comprising:

a bus; and

a plurality of bus devices coupled to the bus, each of the plurality of bus devices having a guaranteed unique identifier installed by a manufacturer of said each of the plurality of bus devices and a physical address on the bus, a first one of the plurality of bus devices to act as a bus manager and to access a map in a second one of the plurality of bus devices to map each of the guaranteed unique identifiers to a respective physical address of one of the plurality of bus devices in automatic response to a configuration event causing a change in at least one of the physical addresses, wherein the first device is not the second device.

8. The bus system of claim 7, wherein the bus implements a network.

9. The bus system of claim 7, wherein the configuration event includes one of powering on a bus, resetting a bus, insertion of a first of the plurality of bus devices, and removal of a second of the plurality of bus devices.

10. The bus system of claim 7, wherein the bus manager is to map each of the guaranteed unique identifiers and a respective physical address into at least one of an array, a doubly linked list, a tree, a table, and a file.

11. The bus system of claim 7, wherein the map is bi-directional.

13. The program storage device of claim 12, wherein the configuration event includes one of powering on a bus, resetting a bus, insertion of a first of the plurality of bus devices, and removal of a second of the plurality of bus devices.

14. The program storage device of claim 12, wherein the bus system comprises:

a bus; and

a plurality of bus devices coupled to the bus, each of the plurality of bus devices having the manufacturer-installed guaranteed unique identifier and a physical address, a particular one of the plurality of bus devices configured to act as a bus manager and to map each of the manufacturer-installed guaranteed unique identifiers to a respective physical address of one of the plurality of bus devices.

15. The program storage device of claim 12, wherein the encoded instructions, when executed, map the plurality of unique identifiers to the respective physical addresses bidirectionally.

12. A computer readable program storage device encoded with instructions that, when executed by a computer, cause a bus manager in a first bus device to access a map in a second bus device to map each of a plurality of manufacturer-installed guaranteed unique identifiers to a respective physical address of one of a plurality of bus devices in a bus system in automatic response to a configuration event causing a change in at least one of the physical addresses, wherein the first device is not the second device and the first and second devices are on the first bus.