ADCCP communication processor

Claim 1

An ADCCP communication processor apparatus to interface between the PARCS communication system and the NCMC communication system for purposes of reformatting and translating messages therebetween comprising in combination: a serial asynchronous port connected to the PARCS DTCA serial port switch and a means of selecting a desired link, said serial asynchronous port providing a means for transmitting and receiving data from the PARCS communication system, an interface control unit connected to said serial asynchronous port for controlling the data flow to and from said serial port switch, two input and two output Autodin data buffers to provide means for storing Autodin messages from and to the PARCS data processing unit in said PARCS communication system, Quecue control and a microprocessor means operatively connected to said interface control means to process data signals therebetween, said microprocessor means receiving serial data from said PARCS communication system and reformatting the messages from an Autodin Mode 1, 80 character block format into ADCCP frame structrue using an HDLC format using message having a maximum length of 246 bytes for transmission to the NCMC communication system, said Autodin Mode 1 Format comprises a standard 80 character card image block by block protocol, and, a protocol controller means operatively connected between said microprocessor means and said NCMC communication system, said protocol controller means buffering the data flow therebetween, said protocol controller means providing serial to parallel, parallel to serial data conversion, zerio bit insertion/deletion, and cyclic redundancy check generation and checking of the data signals therein, said protocol controller means comprises in combination: a prime and backup frame buffer means to buffer the data signal flow between said NCMC combination system and said microprocessor means, and a protocol handler means to establish data transmission formats.