摘要:
A chip-to-chip communication system and interface technique. A master and at least two devices are interconnected with a signal line of a high speed bus. A capacitive coupling element, for example a diode, is employed to capacitively couple the interface of the device to the signal line. By employing the capacitive coupling element, along with a suitable signaling technique which supports capacitive information transfer, high speed rates of information transfer between the master and device over the signal line are achieved.
摘要:
An integrated circuit memory device that include an input receiver, an output driver, and a capacitive coupling element. The capacitive coupling element includes a first capacitor electrode and a second capacitor electrode. The first capacitor electrode is coupled to the input receiver and the output driver, an the second capacitor electrode couples to an external signal line. Delay modulated data is received by the input receiver from the external signal line via the capacitive coupling element.
摘要:
A chip-to-chip communication system and interface technique. A master and at least two devices are interconnected with a signal line of a high speed bus. A capacitive coupling element, for example a diode, is employed to capacitively couple the interface of the device to the signal line. By employing the capacitive coupling element, along with a suitable signaling technique which supports capacitive information transfer, high speed rates of information transfer between the master and device over the signal line are achieved.
摘要:
A bus system for use with addressable memory has a global bus of uni-directional signal lines. The global bus has a first end and a second end. A master device transmits data to and receives data from the global bus. First and second global bus terminators are coupled to the first and second ends of the global bus, respectively. One or more subsystems are connected in parallel to each other and to the master device via the global bus. Each subsystem includes a local bus, one or more slave devices coupled to the local bus, a write buffer that receives incoming signals from the master device via the global bus and transmits the incoming signals to the one or more slave devices via the local bus, and a read buffer that receives outgoing signals from the one or more slave devices via the local bus and transmits the outgoing signals to the master device via the global bus.
摘要:
A system includes a first bus, a master device coupled to the first bus, and one or more subsystems coupled to the first bus. A respective subsystem includes a second bus, one or more slave devices coupled to the second bus, a write buffer to receive incoming signals from the master device via the first bus and to transmit signals to the one or more slave devices via the second bus in response to the incoming signals, and a read buffer to receive outgoing signals from the one or more slave devices via the second bus and to transmit signals to the master device via the first bus in response to the outgoing signals.
摘要:
A bus system for use with addressable memory has a global bus of bidirectional signal lines. The global bus has a first end and a second end. A master device transmits data to and receives data from the global bus at the first end. A global bus terminator is coupled to the global bus at the second end. One or more slave devices, including a last slave device at a furthest distance from the master device, each includes an active terminator coupled to at least some of the bidirectional signal lines of the global bus. The active terminator of only the last slave device is enabled.
摘要:
An integrated circuit device includes an output driver, a first register to store a value representative of a drive strength setting of the output driver, wherein the value is determined based on information stored in a supplemental memory device external to the integrated circuit memory device, and a transmitter circuit configurable to receive the value representative of a drive strength setting of the output driver. The output driver is configurable to output data synchronously with respect to an external clock signal.
摘要:
An integrated circuit device is described. The integrated circuit device includes a transmitter circuit having an output driver to output data, and a register to store a value representative of an equalization co-efficient setting of the output driver. The value may be determined based on information stored in a supplemental memory device.
摘要:
Bus communications are optimized by adjusting signal characteristics in accordance with one or more topography dependent parameters. In a bus transmitter, a transmit signal characteristic is adjusted in accordance with a topography dependent parameter. A port in the bus transmitter receives the topography dependent parameter for later use by the parameter adjustment circuitry. The parameter adjustment circuitry adjusts a parameter control signal in accordance with the topography dependent parameter, which is coupled to the output driver. Prior to driving an output signal onto a bus, the output driver adjusts the transmit signal characteristic in accordance with the parameter control signal. Similarly, in a bus receiver, a receive signal characteristic is adjusted in response to a topography dependent parameter.
摘要:
A chip includes a receiver circuit that uses a reference voltage to receive a data signal such that a logic level of the received data signal is determined using the reference voltage, and a register to store a value that represents an adjustment to the reference voltage.