SAF82520-P Description
High-Level Serial Communications Controller (HSCC) 1 .SAF82520-P Features
* Two independent HDLC channels Implementation of X.25 LAPB/LAPD protocol Programmable timeout and retry conditions FIFO buffers for efficient transfer of data packets Digital phase-locked loop for each channel Baudrate generator and oscillator Different modes for clock recovery and data encoding HighSAF82520-P Applications
* in systems designed for packet switching. In this application in particular, the integrated collisionresolution mechanism provides optimal utilization of system-internal PCM paths. A number of characteristics which distinguish the SAB 82520 from conventional low-level HDLC devices are described belo
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