Semiconductor memory device capable of stably setting mode register set and method therefor
AssigneeHynix Semiconductor Inc.
InventorYong-Bok An
Life of this patent
Estimating the term…
Abstract
A semiconductor memory device having a mode register set (MRS) includes: a decoding unit for decoding a plurality of address signals included in the MRS and outputting a plurality of decoded signals; and an output unit for outputting a plurality of configuration signals and activating one of the plurality of configuration signals in response to the plurality of decoded signals, wherein the output unit keeps its previous output signals if more than one of the plurality of decoded signals are activated.
Claims8
A semiconductor memory device having a mode register set (MRS), comprising:
- a decoding unit for decoding a plurality of address signals included in the MRS and outputting a plurality of decoded signals;
- and
- an output unit for outputting a plurality of configuration signals and activating one of the plurality of configuration signals in response to the plurality of decoded signals, wherein the output unit keeps its previous output signals if more than one of the plurality of decoded signals are activated.
A method for controlling a semiconductor memory device according to a mode register set (MRS), comprising the steps of:
- a) decoding addresses inputted to the MRS;
- b) determining whether or not the addresses inputted to the MRS are defined;
- and
- c) activating a corresponding configuration signal if the addresses are defined or holding a previous configuration signal if the addresses are not defined.
Dependencies are inferred from the claim text.