PM5372

PMC-Sierra,Inc. Preliminary PM5372 TSE 40 Gbit/s Transport Switching Element FEATURES Implements a Time-Space-Time fabric with STS-1/AU-3 granularity. Provides 64 ingress STS-12 equivalent ports for a total of 64*12 = 768 STS-1 flows. Supports non-blocking permutation switching of 768 STS-1 flows at STS-1 granularity. Provides 64 egress STS-12 equivalent ports consisting of 768 STS-1 flows. Interfaces to STS-48 and STS-192 devices by aggregating 4 and 16 STS12 equivalent flows respectively. Supports multicast and broadcast of STS-1 streams. Supports STS-12 equivalent flows with an extended 8B/10B protocol over 777.6 MHz LVDS links. Supports multi-plane (inverse multiplexed) switch architectures in conjunction with the PM5310 TBS device and PM7390 S/UNI®-MACH48. Recovers clock and data at each ingress port, synchronizes with an internal 77.76 MHz clock, and produces egress streams with a common 777.6 MHz clock. Detects and reports inactive or erred LVDS links via the microprocessor interface. Supports two sets of switch settings and a controlled method of changing settings on STS-1 frame boundaries. Supports multiple fabric architectures that range from 40 Gbit/s (1 TSE) to 160 Gbit/s (4 TSE devices) in a single stage, and up to 2.5 Tbit/s using multistage fabrics. Ingress to egress STS-1 switching latency of approximately 900 ns. Supported by an efficient algorithm to compute control settings for all permutation loads for all supported fabric architectu...