Adjusting settings of an I/O circuit for process, voltage,...

Details Adjusting settings of an I/O circuit for process, voltage,... Adjusting settings of an I/O circuit for process, voltage,...

2007-01-02

2007-01-02

Cho, James (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Signal level or switching threshold stabilization

C326S030000, C326S031000, C326S033000, C327S108000

Reexamination Certificate

active

10999857

ABSTRACT:
A control circuit and method for controlling the electrical characteristics of an input/output (I/O) circuit such as an output driver to account for variations in fabrication process, supply voltage, and/or temperature (PVT) conditions includes a PVT controller having appropriate control logic to permit PVT compensation to be observed, tested, and selectively adjusted. The PVT controller permits selection between PVT sensing circuit-provided control signals and control signals stored in a hardware register for controlling drive strength. The PVT controller further provides the capability to offset the selected drive strength by a fixed amount and select whether or not the offset is applied and permits full testability and observability of the selected control signal, an offset value applied thereto, and the resulting output signal.

REFERENCES:
patent: 5337254 (1994-08-01), Knee et al.
patent: 6222354 (2001-04-01), Song
patent: 6417705 (2002-07-01), Tursi et al.
patent: 6509757 (2003-01-01), Humphrey
patent: 6646483 (2003-11-01), Shin
patent: 6670821 (2003-12-01), Ajit
patent: 6683482 (2004-01-01), Humphrey et al.
patent: 6703908 (2004-03-01), Ruesch et al.
patent: 7020818 (2006-03-01), Dour et al.
patent: 7034608 (2006-04-01), Gai et al.
patent: 2004/0090240 (2004-05-01), Ajit
patent: 1 341 307 (2003-03-01), None
patent: 1 326 343 (2003-09-01), None

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