Semiconductor memory and system apparatus

Details Semiconductor memory and system apparatus Semiconductor memory and system apparatus

2007-07-31

2007-07-31

Zarabian, Amir (Department: 2827)

Static information storage and retrieval

Read/write circuit

Signals

C365S194000, C365S189020, C365S233100

Reexamination Certificate

active

11167318

ABSTRACT:
A register part of a mode register has a plurality of operation setting parts in which plural types of operating specifications are respectively set to operate the semiconductor memory. The mode register outputs a soft reset signal when at least a value of one-bit of the register part represents a reset state. A reset signal generator outputs a reset signal for resetting an internal circuit in response to the soft reset signal. In the present invention, a system that controls the semiconductor memory is required to necessarily assign a predetermined bit with a setting command of the mode register in order to generate the soft reset signal. Accordingly, it is possible to reliably reset the internal circuit by external control.

REFERENCES:
patent: 5905690 (1999-05-01), Sakurai et al.
patent: 2004/0158700 (2004-08-01), Maeda
patent: 2004/0268136 (2004-12-01), Mitsuishi
patent: 11-149771 (1999-06-01), None

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