초록 ▼

An electronic integrated circuit includes a signal path connected between the functional logic (15) thereof and an external output terminal thereof, which signal path includes a memory circuit (121C, 127C). The memory circuit is coupled to the output terminal and is selectively operable to detect an

An electronic integrated circuit includes a signal path connected between the functional logic (15) thereof and an external output terminal thereof, which signal path includes a memory circuit (121C, 127C). The memory circuit is coupled to the output terminal and is selectively operable to detect and resolve voltage contention at the output terminal, and is also selectively operable to isolate itself from voltages at the output terminal.

대표청구항 ▼

1. An electronic integrated circuit, comprising:A . functional logic for performing logic functions of the integrated circuit; B. an output terminal which is accessible externally of the integrated circuit; C. a signal path connected between said functional logic and said output terminal for carryin

1. An electronic integrated circuit, comprising:A . functional logic for performing logic functions of the integrated circuit; B. an output terminal which is accessible externally of the integrated circuit; C. a signal path connected between said functional logic and said output terminal for carrying signals from said functional logic to said output terminal; D. said signal path including a memory circuit coupled to said output terminal and having a control input, said memory circuit selectively responsive to a control signal received at said control input to detect and resolve voltage contention at said output terminal, and said memory circuit also selectively responsive to said control signal received at said control input to isolate said memory circuit from voltages at said output terminal; E. said signal path including an output buffer having an output connected to said output terminal, and said memory circuit including said output buffer; F. said memory circuit including a feedback path connected to said output of said output buffer and to an input of said output buffer for carrying feedback signals from said output said output buffer to said input of said output buffer; G. said memory circuit including a memory element connected to said input of said output buffer; and H. said memory element including a switch and a bus holder circuit, said bus holder circuit connected between said switch and said input of said output buffer, and said switch connected between said functional logic and said bus holder circuit.