Chip address allocation through a serial data ring on a stackabl

Details Chip address allocation through a serial data ring on a stackabl Chip address allocation through a serial data ring on a stackabl

1997-11-06

2000-10-17

Olms, Douglas W.

Multiplex communications

Channel assignment techniques

Polling

370258, 370475, H04L 12403, H04L 1242

Patent

active

061342408

ABSTRACT:
Provided is a system which automatically determines and assigns an appropriate address for each chip in a repeater system. All the ASICs in a system are chained together on a serial data ring for address allocation purposes. A "First On" ASIC in a system initializes the chip address map, and assigns itself the first address. The First On ASIC then updates the address map by setting the next address and sends it down the chain to the next ASIC in the system. The second ASIC allocates the incoming address to itself, sets the address for the next ASIC, and passes the address signal on. The process repeats itself until the last ASIC in the chain has an address allocated. The last ASIC then notifies the First On ASIC of its address to close the loop.

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Network Systems Tutorial for IEEE Std 802.3, Repeater Functions and System Design Topology Considerations for Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Local Area Networks (LANs); Section 4, Repeater Functions, pp. 7-14 (1995).
International Standard ISO/IEC 8802-3: 1996(E) ANSI/IEEE Std 802.3, 1996 Edition; Carrier sense multiple access with collision detection (CSMA/DC) access method and physical layer specifications; Section 9, Repeater unit for 10 Mb/s baseband networks, pp. 125-155.

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