Electrical computers and digital data processing systems: input/ – Input/output data processing – Direct memory accessing
Reexamination Certificate
2005-07-12
2005-07-12
Peyton, Tammara (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Direct memory accessing
C710S032000, C710S033000, C710S113000
Reexamination Certificate
active
06917991
ABSTRACT:
The debug controller makes an efficient use of memory in tracing the direct memory access by the processor and the direct memory access controller for the purpose of debugging. The direct memory access for read and write is efficiently traced by first writing a next access memory address at a currently accessing memory address.
REFERENCES:
patent: 4870566 (1989-09-01), Cooper et al.
patent: 2002/0016869 (2002-02-01), Comeau et al.
Knoble Yoshida & Dunleavy
Peyton Tammara
Ricoh Co. Ltd.
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