Oracle International Corporation

Singrong Li

Jungyong Lee

Heechoul Park

Hoyeol Cho

A memory array for process variation tolerant bypass operation. The memory array may utilize normal read operation data path of a memory I/O module. Accordingly, the speed at which the bypass operation may be executed may be increased. Furthermore, a potential for false read operations introduced by the utilization of the normal read operation data path of the memory I/O module may be reduced using a protect mechanism operable to block the output of false reads from the memory array.

High speed read access memory array with variation tolerant bypass scheme with protection circuit

Embodiments include systems and methods for faster memory read-out using a combined read-select circuit. A novel read-select circuit is described, which, when enabled for reading, concurrently reads its respective input line and selects its value for read-out by the circuit. This can reduce delays and unnecessary toggling resulting from separate read and select circuits. Some implementations also include a multi-global-line architecture that can reduce the number of read stages in the memory read-out circuitry, thereby further reducing read-out delays. Accordingly, embodiments can be faster and more efficient than many traditional implementations without relying on an increase in power consumption or clock speed.

Fast memory read-out

A process variation tolerant collision detection apparatus for use in detecting collisions in a multibank memory. The apparatus may receive a plurality of memory commands for execution at the multibank memory. The plurality of memory commands may be compared by an index address comparator and a bank address comparator to generate an index match signal and a bank match signal. The index match signal and the bank match signal may be analyzed by a timing correction module such that errors associated with process variation of the signals used in the system may be eliminated. Accordingly, a corrected index match signal and a corrected bank match signal may be provided to a collision detection circuit to determine whether a collision exits.

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Singrong Li