Data transmission station

A data transmission station comprising:

• an incoming flag signal terminal, clock signal terminal and data signal terminal adapted to receive a flag signal, a periodic clock signal, and a plurality of data signals, respectively;
• an outgoing flag signal terminal, clock signal terminal and data signal terminal;
• a plurality of data terminals;
• first means, responsive to the flag signal and the clock signal, for receiving the flag signal from the incoming flag terminal, storing the flag signal for only a selected interval defined by a predetermined number of periods of the clock signal, and then placing the flag signal on the outgoing flag signal terminal;
• second means, responsive to the first means and operative during the selected interval when the flag signal is stored by the first means, for gating data signals between at least selected ones of the data terminals and the outgoing data signal terminal during time slots defined by the clock signal;
• means for passing the clock signal from the incoming clock signal terminal to the outgoing clock signal terminal;
• and
• means for passing data signals from the incoming data signal terminal to the outgoing data signal terminal.

A data transmission station comprising:

• an incoming flag signal terminal, clock signal terminal and data signal terminal adapted to receive a flag signal, a periodic clock signal, and a plurality of data signals, respectively;
• an outgoing flag signal terminal, clock signal terminal and data signal terminal;
• a plurality of data terminals;
• first means, responsive to the flag signal and the clock signal, for receiving the flag signal from the incoming flag terminal, storing the flag signal for only a selected interval defined by a predetermined number of periods of the clock signal, and then placing the flag signal on the outgoing flag signal terminal;
• second means, responsive to the first means and operative during the selected interval when the flag signal is stored by the first means, for gating data signals between the incoming data signal terminal and at least selected ones of the data terminals during time slots defined by the clock signal;
• means for passing the clock signal from the incoming clock signal terminal to the outgoing clock signal terminal;
• and
• means for passing data signals from the incoming data signal terminal to the outgoing data signal terminal.

A data transmission station comprising:

• an incoming flag signal terminal, clock signal terminal and data signal terminal adapted to receive a flag signal, a periodic clock signal, and a plurality of data signals, respectively;
• an outgoing flag signal terminal, clock signal terminal and data signal terminal;
• a plurality of data terminals comprising a plurality of command terminals and a plurality of response terminals;
• means for passing the clock signal from the incoming clock signal terminal to the outgoing clock signal terminal;
• means for passing data signals from the incoming data signal terminal to the outgoing data terminal;
• a shift register comprising a plurality of stages, an input terminal coupled to receive the flag signal from the incoming flag signal terminal, a clock terminal coupled to receive the clock signal from the incoming clock signal terminal, and a plurality of output terminals, each associated with a respective stage of the shift register, said shift register comprising means for shifting the flag signal through successive ones of the stages in synchrony with the clock signal in order to generate a gating signal on successive ones of the output terminals;
• a plurality of response signal gates, each coupled between a respective one of the response terminals and the outgoing data signal terminal, and each responsive to the gating signal on a respective one of the output terminals to gate a data signal from the respective response terminal to the outgoing data signal terminal;
• a plurality of command signal gates, each coupled between the incoming data signal terminal and a respective one of the command terminals, and each responsive to the gating signal on a respective one of the output terminals to gate a data signal from the incoming data signal terminal to the respective command terminal;
• and
• means for placing the flag signal on the outgoing flag signal terminal after the flag has reached a selected stage of the shift register.