Scaleable bandwidth interconnect for simultaneous transfer of mixed pleisiochronous digital hierarchy (PDH) clients
AssigneePMC-Sierra, Inc.
InventorsJeff D. Dillabough, Steve Lang, Winston Mok
Life of this patent
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Abstract
A scaleable bandwidth interconnect (SBI) for interconnection of physical layer devices with link layer devices which includes an ADD BUS interface operative to receive data from one of the link layer devices and direct it to one of the physical layer devices and a DROP BUS interface operative to receive data from one of the physical layer devices and direct it to one of the link layer devices. By utilizing buses to access each of the physical layer devices and the link layer devices permits interfacing between a high density of physical layer devices and a high density of link layer devices.
Claims21
A scaleable bandwidth interconnect (SBI) for interconnection of physical layer devices with link layer devices, comprising:
- (a) a unidirectional ADD BUS interface operative to receive data from one or more of said link layer devices and direct it to one or more of said physical layer devices wherein for each link on said ADD BUS interface timing is derived from a corresponding one of said link layer devices or said physical layer devices;
- and
- (b) a unidirectional DROP BUS interface operative to receive data from one or more of said physical layer devices and direct it to one or more of said link layer devices wherein for each link on said DROP BUS interface timing is derived from a corresponding one of said physical layer devices.
Dependencies are inferred from the claim text.