Communication processing system in which communication by termin

Details Communication processing system in which communication by termin Communication processing system in which communication by termin

1988-05-25

1992-10-13

Eng, David Y.

Boots, shoes, and leggings

3642290, 3642383, 3642410, 3642430, 364DIG1, G06F 1300

Patent

active

051558572

ABSTRACT:
A terminal controller detects state of a plurality of terminal devices by polling system, and the detected state is in a terminal management table possessed by the terminal controller and each terminal device, and the communication processing is performed corresponding to the table content. The terminal controller and each terminal device comprise respectively a main processor connected through a bus to a main memory and a communication control adapter. The communication control adapter is composed of a local processor, a local memory and a communication data send/receive circuit, and terminal management table region is provided on the main memory and the local memory. The local processor executes management of the terminal management table, and rewrites the terminal management information on the local memory and at the same time transfers the terminal management information onto the main memory by the DMA function provided on the communication control adapter.

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Texas Instruments, TTL Data Book, vol. 2, 1985, pp. 2-4 to 2-5.

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