Multi-column addressing mode memory system including an...

Static information storage and retrieval – Addressing – Particular decoder or driver circuit

Reexamination Certificate

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C365S189040, C365S230030, C365S233100, C711S005000, C711S168000

Reexamination Certificate

active

07907470

ABSTRACT:
A memory system includes a master device, such as a graphics controller or processor, and an integrated circuit memory device operable in a dual column addressing mode. The integrated circuit memory device includes an interface and column decoder to access a row of storage cells or a page in a memory bank. During a first mode of operation, a first row of storage cells in a first memory bank is accessible in response to a first column address. During a second mode of operation, a first plurality of storage cells in the first row of storage cells is accessible in response to a second column address during a column cycle time interval. A second plurality of storage cells in the first row of storage cells is accessible in response to a third column address during the column cycle time interval. The first and second pluralities of storage cells are concurrently accessible from the interface.

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