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US 12,625,790 B2Granted
Tracing circuit, semiconductor device, tracer, and tracing system
AssigneeRohm Co., Ltd.
InventorTakahiro Nishiyama
Life of this patent
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AssigneeRohm Co., Ltd.
InventorTakahiro Nishiyama
Estimating the term…
A tracing circuit is integrated in a semiconductor device along with a microprocessor including an m-bit program counter, and externally outputs a tracing clock along with an n-bit tracing data (where 2≤n≤m). The tracing circuit, when the program counter remains unchanged, synchronously with the tracing clock sets the tracing data to a first output value; when the program counter is incremented, synchronously with the tracing clock sets the tracing data to a second output value; and when the program counter is loaded, synchronously with the tracing clock sets the tracing data to a third output value, and then suspends the state machine in the microprocessor and split-outputs, as the tracing data, the branch destination address or interrupt destination address loaded in the program counter.
A tracing circuit for use with a microprocessor having an m-bit (where 2≤m) program counter, the tracing circuit externally outputting tracing data synchronously with a tracing clock,
A tracing method comprising:
A tracing method comprising:
Dependencies are inferred from the claim text.