Apparatus and method of tracing descriptors in host controller

Details Apparatus and method of tracing descriptors in host controller Apparatus and method of tracing descriptors in host controller

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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