Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2005-04-26
2005-04-26
Padmanabhan, Mano (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S100000, C711S105000, C365S185250, C365S203000
Reexamination Certificate
active
06886072
ABSTRACT:
As a result of comparing an address set in an area setting register and an address shown by address information of an access request signal, if the address set in the area setting register matches the address shown by the address information, a command with auto precharge is outputted to an FCRAM, and if not, an ordinary command is outputted to the FCRAM. Thus, when an area, in which addresses to be accessed are random in many cases, is accessed, the command with auto precharge is outputted to allow the FCRAM to perform a precharge operation automatically, and when an area, in which addresses to be accessed are sequential in many cases, is accessed, the ordinary command is outputted to allow a read operation or a write operation to be performed continuously, whereby data transfer efficiency can be increased.
REFERENCES:
patent: 5784582 (1998-07-01), Hughes
patent: 20020097613 (2002-07-01), Raynham
Patent Abstracts of Japan of JP 11-016339 dated Jan. 22, 1999.
Fujita Atsushi
Saruwatari Toshiaki
Namazi Mehdi
Padmanabhan Mano
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