Static information storage and retrieval – Addressing – Plural blocks or banks
Reexamination Certificate
2008-06-06
2010-02-16
Nguyen, Tan T. (Department: 2827)
Static information storage and retrieval
Addressing
Plural blocks or banks
C365S189020, C365S230020, C365S230050
Reexamination Certificate
active
07663963
ABSTRACT:
An apparatus and method are provided for reading a plurality of consecutive entries and writing a plurality of consecutive entries with only one read address and one write address using a 2Read/2Write register file. In one exemplary embodiment, a 64 entry register file array is partitioned into four sub-arrays. Each sub-array contains sixteen entries having one or more 2Read/2Write SRAM cells. The apparatus and method provide a mechanism to write the consecutive entries by only having a 4 to 16 decode of one address. In addition, the apparatus and method provide a mechanism for reading data from the register file array using a starting read word address and two read word lines generated based on the starting read word address. The two read word lines are used to access the two read ports of the entries in the sub-arrays.
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Chu Sam Gat-Shang
Delaney Maureen Anne
Islam Saiful
Nahidi Jafar
Nguyen Dung Quoc
Gerhardt Diana R.
International Business Machines - Corporation
Nguyen Tan T.
Walder, Jr. Stephen J.
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