Electrical computers and digital processing systems: memory – Address formation – Combining two or more values to create address
Reexamination Certificate
2005-05-31
2005-05-31
Moazzami, Nasser (Department: 2187)
Electrical computers and digital processing systems: memory
Address formation
Combining two or more values to create address
C711S005000
Reexamination Certificate
active
06901501
ABSTRACT:
In a memory access process, by identifying the types of memories that can be activated without reducing operating speed and by reducing power consumption, a data processor capable of operating at a high memory-accessing speed is provided. Because memory types can often be differentiated based only on partial bits of the address obtained by addition, a partial bit adder and decision logic are used to make this differentiation at high speed. Because the partial addition preferably does not take into account the possible carry from the lower bits, two types of memories are chosen from memories and are both operated in case the carry should be “1” and in case it should be “0.” The result is chosen by a multiplexor and is output. A determination of the entry address of the memory may be similarly carried out by dividing the memory into odd and even entry number banks and utilizing a partial bit adder. Then, both banks may be activated with the results of the partial bit adder as entries, and one of the results is chosen for output.
REFERENCES:
patent: 5860151 (1999-01-01), Austin et al.
patent: 5953748 (1999-09-01), Riordan
patent: 5963977 (1999-10-01), Gold et al.
patent: 6009510 (1999-12-01), Henry et al.
patent: 6430668 (2002-08-01), Belgard
patent: 4-76648 (1990-07-01), None
patent: 8-63974 (1995-07-01), None
Arakawa Fumio
Ishikawa Makoto
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Moazzami Nasser
Reed Smith LLP
Renesas Technology Corp.
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