Static information storage and retrieval – Read/write circuit – Including signal comparison
Reexamination Certificate
2009-09-04
2011-12-27
Dinh, Son (Department: 2824)
Static information storage and retrieval
Read/write circuit
Including signal comparison
C365S189140, C365S189160
Reexamination Certificate
active
08085603
ABSTRACT:
A memory is disclosed that can be utilized with a field programmable gate array. In some embodiments, the memory can include a memory array comprising a plurality of memory banks, each memory bank including at least one memory block, each of the at least one memory block including an array of memory cells; an address decoder coupled to each of the at least one memory block, the address decoder including a comparator coupled to receive an input address and a block address and provide a compare bit that indicates when a portion of the input address matches the block address, and an OR gate coupled to receive the compare bit and a wildcard bit, the OR gate providing an enable to the memory block when either the compare bit or the wildcard bit is asserted; and a logic unit that receives a mode value and the input address and provides the wildcard bit to each of the address decoders. Data can be simultaneously written into the memory array in patterns in accordance with the mode value. For example, in some embodiments the mode value indicates one of four patterns, a normal pattern, a block checkerboard pattern, a bank checkerboard pattern, and an all banks pattern.
REFERENCES:
patent: 6636455 (2003-10-01), Maruyama et al.
patent: 2008/0259695 (2008-10-01), Cho
Gunwani Manoj
Prater Cordell
Verma Hare K.
Dinh Son
Hayes and Boone
Integrated Device Technology Inc.
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