发明名称 PROGRAMMABLE CONTROLLER WITH MODULAR FIRMWARE FOR COMMUNICATION CONTROL
摘要 <p>This invention relates generally to a programmable controller module. In almost all data management systems, a controller is designed to accommodate only peripheral devices having a common communication discipline. An object of this invention is to provide some identification of the discipline of each peripheral device connected to each channel serviced by a programmed controller module in order for the appropriate protocol to be used, and to provide the protocols for the different disciplines in separate selectable modules. A programmable controller module(PCM) for operably coupling a plurality of peripheral devices (PDs) of various communication disciplines to a data processor (DP) or to remote PCMs through a serial interface adapter (SIA) or parallel interface adapter (PIA). The PCM is comprised of a serial purpose computer having implement specific communication protocols (routines) for different communication disciplines. Each PD is assigned, and addressed by, a channel code. A discipline identification (DID) line is connected from each adapter channel to one of a predetermined number of terminals in the PCM. There is one terminal for each communication discipline for which there is stored an appropriate protocol. Each channel has its DID line connected to the appropriate terminal according to the communication discipline of the PD connected to it. When a channel is addressed, its DID is activated. The PCM then scans the terminals to determine which is activated to ascertain the discipline of the device.</p>
申请公布号 CA1105585(A) 申请公布日期 1981.07.21
申请号 CA19770280365 申请日期 1977.06.13
申请人 BUNKER RAMO CORPORATION 发明人 LARSON, KENNETH N.;SCARBROUGH, ALFRED D.;KNUEVEN, JOHN B.
分类号 H04L29/04;G06F13/00;G06F13/12;G06F13/38;(IPC1-7):06F3/04 主分类号 H04L29/04
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