System for receiving a data stream of serialized data

Details System for receiving a data stream of serialized data System for receiving a data stream of serialized data

1994-10-03

1998-12-01

Donaghue, Larry D.

3952008, 39580036, G06F 1300

Patent

active

058450858

ABSTRACT:
A high-level data-link controller (HDLC) receiver state machine for controlling the data-receiving functions of a HDLC receiver which receives frames of serialized data over a data-link. The state machine comprises a single logic device on an integrated circuit which is capable of determining in-frame status of received data, performing zero-deletions when the received data are in-frame, detecting abort signals within the received data, and controlling the overall functions of the receiver. The state machine may be utilized in a simplified HDLC receiver comprising the state machine, a shift register for converting serialized data into parallel data, a cyclical redundancy check (CRC) checker for validating the frames of received data, and a first-in, first-out (FIFO) buffer for storing the parallel data until the data are read by a controlling microprocessor.

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