Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus interface architecture
Reexamination Certificate
2006-07-18
2006-07-18
Perveen, Rehana (Department: 2112)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus interface architecture
C330S192000, C326S047000, C326S087000
Reexamination Certificate
active
07080185
ABSTRACT:
An access destination determining section determines whether an access is directed to region1or region2. A region1drive capability register and a region2drive capability register set drive capabilities of output buffers when accesses to region1and region2generate, respectively. For example, if “1” is set to region1drive capability register, when an access to region1generates, a Buf2output enable signal is output at high level to enable outputs of Buf2s. Therefore, a drive capability of a bus can be altered according to a region to which an access is made by a CPU or the like, thereby enabling prevention of unnecessary power consumption and generation of noise.
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Cerullo Jeremy S.
McDermott Will & Emery LLP
Perveen Rehana
Renesas Technology Corp.
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