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US 2003/0217301 A1Published application
Method and apparatus for transmitting side-band data within a source synchronous clock signal
OwnerPaul S. Levy, Karl H. Mauritzinventors
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Abstract
In a source synchronous interface between two devices, the transmitting device inserts side-band data into a clock signal and transmits to the other device the clock signal and one or more additional signals including data. The side-band data corresponds to the data. The receiving device extracts the side-band data from the received clock signal.
Claims46
A method comprising:
- transmitting a data signal on a first signal line;
- transmitting a clock signal on a second signal line, the clock signal including side-band data corresponding to the data signal.
A method comprising:
- transmitting a data signal on a first signal line;
- inserting side-band data onto a clock signal to create a modulated clock signal, the side-band data corresponding to the data signal;
- and
- transmitting the modulated clock signal on a second signal line.
1 more element
A method comprising:
- receiving a first signal including data;
- receiving a second signal including a clock and side-band data, the side-band data corresponding to the data;
- and
- extracting the side-band data from the second signal.
1 more element
A method comprising:
- receiving a first signal including data;
- receiving a second signal including a clock and side-band data, the side-band data corresponding to the data;
- generating a blanking signal in synchronism with the clock;
- blanking the side-band data from the second signal with the blanking signal to extract the clock;
- and
- in response to the blanking signal, gating the side-band data from the second signal to extract the side-band data.
3 more elements
A device comprising:
- a core;
- and
- interface circuitry coupled with the core, the interface circuitry to
- transmit a data signal on a data line,
- insert side-band data onto a clock signal to create a modulated clock signal, the side-band data corresponding to the data signal, and
- transmit the modulated clock signal on a strobe line.
3 more elements
A device comprising:
- a core;
- and
- interface circuitry coupled with the core, the interface circuitry to
- receive a first signal on a data line, the first signal including data,
- receive a second signal on a strobe line, the second signal including a clock and side-band data, the side-band data corresponding to the data, and
- extract the side-band data from the second signal.
3 more elements
An apparatus comprising:
- a bus;
- a first device coupled with the bus;
- a second device coupled with the bus;
- first interface circuitry coupled with the first device, the first interface circuitry to transmit a first signal and a second signal over the bus, the first signal including data, the second signal including a clock and side-band data, the side-band data corresponding to the data;
- and
- second interface circuitry coupled with the second device, the second interface circuitry to receive the first signal and the second signal, the second interface circuitry to extract the side-band data from the second signal.
3 more elements
An article of manufacture comprising:
- a medium having content that, when accessed by a device, causes the device to
- transmit a data signal on a first signal line;
- transmit a clock signal on a second signal line, the clock signal including side-band data corresponding to the data signal.
An article of manufacture comprising:
- a medium having content that, when accessed by a device, causes the device to
- receive a first signal including data;
- receive a second signal including a clock and side-band data, the side-band data corresponding to the data;
- and
- extract the side-band data from the second signal.
2 more elements
Dependencies are inferred from the claim text.