Electrical computers and digital data processing systems: input/ – Input/output data processing – Direct memory accessing
Reexamination Certificate
2011-05-17
2011-05-17
Tsai, Henry W (Department: 2184)
Electrical computers and digital data processing systems: input/
Input/output data processing
Direct memory accessing
C710S001000, C710S018000, C710S019000, C710S305000, C710S313000, C714S025000, C714S037000, C714S039000, C714S043000, C717S124000, C717S128000
Reexamination Certificate
active
07945714
ABSTRACT:
Apparatus and method of tracing descriptor in a host controller are provided. The host controller for controlling a device includes a first bus interface coupled to a system bus, a processor which determines whether data received from a system memory through the first bus interface are descriptor data, and a descriptor tracer which receives and stores descriptor data transmitted to the processor. Therefore, the host controller provides rapid and various functional checking and debugging.
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Samsung Electronics Co,. Ltd.
Snyder Steven G
Sughrue & Mion, PLLC
Tsai Henry W
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