MT90840

® MT90840 Distributed Hyperchannel Switch Advance Information Features Time-slot interchange function between 8 pairs of ST-BUS/GCI/MVIP streams (512 channels) and a Parallel Data Port (PDP) Supports star, point to point connections and unidirectional or bidirectional ring topologies for distributed systems Input to Output Bypass function with minimum delay for shared ring applications Provides an internal latency adjustment buffer for ring applications Parallel port data rates up to 19.44Mbyte/s Programmable data rates on the serial port side (2.048 Mb/s, 4.096 Mb/s or 8.192 Mb/s) Unidirectional Parallel switching mode for up to 2430 channels non-blocking Per-channel direction control on the serial port side Per-channel message mode and highimpedance control on both parallel and serial port sides 8-bit multiplexed port compatible with Intel and Motorola microcontrollers Guarantees frame integrity when switching wideband channels such as ISDN H0 channel Provides external control lines allowing the fast parallel interface to be shared with other devices C4OUT C4REF1 C4REF2 FO ISSUE 1 June 1995 Ordering Information MT90840AK 100 Pin PQFP MT90840AP 84 Pin PLCC -40°C to 85°C Special diagnostic alarm functions for statistical analysis JTAG boundary scan Applications Bridging ST-BUS/MVIP buses to high speed Time Division Multiplex backplanes at SONET rates (STS-1/3) High speed isochronous backbones for distributed PBX and Local Area Network systems S...