High speed bus system and method for using voltage and timing oscillating references for signal detection

A method comprising:

• using a master device to transmit a control signal via a control bus to a first slave device;
• transmitting a first oscillating reference for detecting transitions in the control signal via a first reference bus to the first slave device;
• using the master device to transmit a first data signal associated with the control signal via a first data bus to the first slave device;
• transmitting a second oscillating reference for detecting transitions in the first data signal via a second reference bus to the first slave device;
• providing a second slave device between the master device and the first slave device;
• providing a clock bus coupled from the first slave device to the second slave device in turn to the master device;
• and
• generating a clocking signal on the clock bus to enable substantially simultaneous receipt of signals at the master device from the first and second slave devices.

A method comprising:

• using a master device to transmit a control signal via a control bus to a first slave device;
• transmitting a first oscillating reference for detecting transitions in the control signal via a first reference bus to the first slave device;
• using a master device to receive a first data signal responsive to the control signal via a first data bus from the first slave device;
• using a master device to receive a second oscillating reference for detecting transitions in the first data signal via a second reference bus from the first slave device;
• providing a second slave device between the master device and the first slave device;
• providing a clock bus coupled from the first slave device to the second slave device in turn to the master device;
• and
• generating a clocking signal on the clock bus to enable substantially simultaneous receipt of signals from the first and second slave devices at the master device.

A system, comprising:

• a control bus port;
• a first reference bus port;
• a first reference transmitter coupled to the first reference bus port for transmitting an oscillating reference;
• a first data bus port;
• a second reference bus port;
• a second reference transmitter coupled to the second reference bus port for transmitting an oscillating reference;
• and
• a master device coupled to the control bus port for transmitting a control signal to the control bus port, coupled to the first data bus port for transmitting a first data signal associated with the control signal to the first data bus port and for receiving a second data signal responsive to the control signal from the first data bus port, and coupled to the second reference bus port for receiving and using an incoming oscillating reference from the second reference bus port to detect a transition in the second data signal.

A system, comprising:

• a control bus port;
• a first reference bus port;
• a data bus port;
• a second reference bus port;
• a first reference transmitter coupled to the second reference bus port for transmitting an oscillating reference to the second reference bus port;
• and
• a first slave device coupled to the control bus port for receiving a control signal from the control bus port, coupled to the first reference bus port for receiving and using an oscillating reference from the first reference bus port to detect a transition in the control signal, coupled to the data bus port for receiving a first data signal associated with the control signal from the data bus port and for transmitting a second data signal responsive to the control signal to the data bus port, and coupled to the second reference bus port for receiving and using the oscillating reference from the second reference bus port to detect a transition in the data signal.