US 7,024,496 B2 · Operation method of input/output pad with monitoring ability

Abstract

An I/O pad has a data transmitting circuit, a data monitoring control circuit, and a control selection circuit. The control selection circuit controls the data transmitting circuit. When it is enabled, data in the data transmitting circuit are exported to a receiving circuit. When it is disabled, data exportation stops. The data monitoring circuit receives signals of the data transmission circuit and export signals to the control selection circuit. The data monitoring circuit judges whether the data transmission is under a stable condition. If it is not, an unstable signal is exported to a first input end of the control selection circuit. A second input end of the control selection circuit receives an output enabling signal. When the data transmission is stable and the output enabling signal indicates a disable status, the control selection circuit disables the data transmitting circuit. Otherwise, the control selection circuit enables the data transmitting circuit.

Claims2

Dependent claims

A method for operating an I/O pad, which is used for transmitting data, said method comprising:

providing a transmitting enabling signal at stable and unstable conditions wherein the data transmission function is performed during the unstable data transmission condition;
transmitting said data through said I/O pad when said transmitting enabling signal is at an enabling level;
detecting said data for transmitting;
and
stopping transmitting data when said transmitting enabling signal is at an disabling level and said data is transmitted at a stable condition.

2 more elements

Dependencies are inferred from the claim text.

Operation method of input/output pad with monitoring ability

Life of this patent

Operation method of input/output pad with monitoring ability

Life of this patent

Abstract

Claims2