초록 ▼

A data processing system which includes a host processor and a plurality of remote processing devices which are coupled to a common communication channel. The system also includes a look-up table storing the sets of instructions for a plurality of communication protocols for use with the remote proc

A data processing system which includes a host processor and a plurality of remote processing devices which are coupled to a common communication channel. The system also includes a look-up table storing the sets of instructions for a plurality of communication protocols for use with the remote processing device and a controller associated with one of the remote processing devices. A selectively actuated switch member located in the controller provides an address for the controller. During a power-up operation, the controller address is transmitted to the host processor for use in addressing the look-up table to obtain the communication protocol for the controller. This information is then loaded into the controller for controlling the transfer of data between the host processor and the remote processing device.

대표청구항 ▼

A data processing system for transmitting data between a host processing device and one of a plurality of remote terminal devices comprising: a communication channel coupled between said host processing device and each of said remote terminal devices; a look-up table coupled to said host processing

A data processing system for transmitting data between a host processing device and one of a plurality of remote terminal devices comprising: a communication channel coupled between said host processing device and each of said remote terminal devices; a look-up table coupled to said host processing device for storing a plurality of sets of program instructions, each set controlling the transmission of data between one of said remote terminal devices and said host processing device in accordance with a different communication protocol; a controller mounted in each of said terminal devices and coupled to said communication channel for controlling the transmission of data between said one of said remote terminal devices and said host processing device over said communication channel, said controller including a processing member; and a manually operated hexadecimal rotary switch member mounted in said controller and coupled to said processing member, said switch member settable to one of a plurality of positions in which each position will output a plurality of different binary signals to said processing means for identifying the controller whereby said processing member transmits over the communication channel the identifying binary signals to said host processing device enabling the host processing device, using the identifying binary signals as an address, to retrieve from said look-up table a set of program instructions controlling the transmission of data between the host processing device and the remote processing terminal controlled by said controller, said host processing device transmitting the set of program instructions to said controller enabling the controller to control the transmission of data between the host processor and said one of said remote terminal devices.