摘要:
An IO-link device (20) configured as slave for transmitting/receiving signal data with a master module (19), the IO-link device comprising : a sensor or actuator (11) configured to produce output measurement signals; a first microcontroller (21) operatively coupled to the sensor or actuator and configured to receive the measurement signals and generate data based on the measurement signals, and a transceiving module (22) which comprises a physical layer transceiver (24) configured to receive/transmit signal data from/to the master module (19), and a second microcontroller (23) operatively coupled and in bi-directional communication with the transceiver, wherein the transceiver (24) is configured to receive signal data associated with a request from the master module (19) and transmit signal data associated with the request to the second microcontroller (23) and the second microcontroller (23) is configured to receive the signal data from the transceiver and to execute a device IO-Link protocol stack, the second microcontroller being operatively coupled and in bi-directional communication with the first microcontroller (21) for the transmission of signal data associated with the request to the first microcontroller and to receive data based on measurement signals from the first controller.
摘要:
Datenübertragungsverfahren (d) für einen Zweidrahtdatenbus (Z) von einem Sender (S) mit Anschlüssen (A1, A2) zu einem Empfänger (E) mit Anschlüssen (A3, A4). Das Verfahren umfasst die Schritte: Erfassen eines ersten Gleichtaktspannungshubes an den Anschlüssen (A1, A2) und Bildung eines ersten Gleichtaktsignals (k1). Erfassen eines zweiten Gleichtaktspannungshubes an den Anschlüssen (A3, A4) und Bilden eines zweiten Gleichtaktsignals (k2). Datensendung durch den Sender (S) über den Zweidrahtdatenbus (Z). Empfang der Daten durch den Empfänger (E). Vergleich der Spannungsdifferenz an den Anschlüssen (A3,A4) mit einer unteren und einer oberen Empfangsschwelle (SW4, SW5), wobei ein Ausgang (0) einer Teilvorrichtung (CMP2) in Abhängigkeit von diesem Vergleich einen ersten oder zweiten Pegel annimmt. Anhebung des differentiellen Sendepegels, wenn der Betrag des ersten Gleichtaktsignals (k1) größer ist als ein erster Schwellwert (SWl). Anhebung der oberen Empfangsschwelle (SW5) und/oder Absenkung der unteren Empfangsschwelle (SW4), wenn der Betrag des zweiten Gleichtaktsignals (k2) größer ist als ein zweiter Schwellwert (SW2). In dem Verfahren ist die Übertragung eines Datums vom Sender (S) zum Empfänger (E) möglich. Abhängig von dem Ergebnis des Vergleichs des Betrags des erfassten ersten Gleichtaktsignals (k1) mit einem ersten Schwellwert (SW1) erfolgt eine Anhebung der oberen Empfangsschwelle (SW5) und/oder eine Absenkung der unteren Empfangsschwelle (SW4) immer dann, wenn dieser Betrag des ersten Gleichtaktsignals (kl) größer ist als dieser erste Schwellwert (SW1).
摘要:
A device receives an analog voltage signal over a single physical electrical connection. The analog voltage signal can be converted into a digital value which can then be correlated to (i) an indication of a connection state of the primary device, and (ii) information about another device (or set of devices) which is connected to the device.
摘要:
A transceiver circuit comprising a front-end (FE1) and a back-end (BE1) is provided. The front-end (FE1) comprises terminals (T1, T2) for coupling to a first and a second capacitor (C1, C2) and tunable resistors (R1, R2) coupled between the terminals (T1, T2) and a reference terminal (VSS). The front-end (FE1) is configured to receive receiver signals at the terminals (T1, T2) utilizing a first setting for the resistors (R1, R2). The front-end (FE1) is configured to generate a receiver data packet based on the receiver signals. The back-end (BE1) is configured to check the receiver data packet for errors with respect to a defined tuning data packet. If an error is found, the back-end (BE1) sets the resistors (R1, R2) to a default setting. If no errors are found, the back-end (BE1) sets the resistors (R1, R2) to a second setting.
摘要:
Embodiments are provided for a cooperative cross-tier precoding (CTP) and intra-tier precoding (ITP) scheme for two-tier networks. The cooperative precoding scheme allows exploitation of extra transmit dimensions at the second-tier network, thereby increasing the achievable throughput at the second-tier network. The embodiments allow significant increase in throughput of the second-tier network due to both CTP between the second-tier network and the first-tier network, and efficient ITP between the second-tier network transmitters. The increase in transmit dimension allows for efficient linear inra-tier precoding, which significantly reduces the intra-tier interference. A processor coupled to the second-tier network transmitters is configured to perform CTP of transmit signals in the second-tier network for cancelling signal interference from the second-tier network transmitters to a first-tier network receiver, thereby generating CTP matrix information. The processor then performs, using the CTP matrix information, ITP for reducing intra-signal interference from the second-tier transmitters to corresponding second-tier receivers.
摘要:
Embodiments of the invention are generally directed driving data of multiple protocols through a single set of pins. An embodiment of an apparatus includes a transmitter connected to two pads on an IC the transmitter including a differential driver to transmit a differential signal, wherein the differential driver has a first branch and a second branch, each branch of the differential driver including a protection device connected to one of the pads; and a common mode driver to transmit a common mode signal, the common mode driver having a first branch and a second branch, each of the branches of the common mode driver including a protection device connected to one of the pads. The first and second switch devices are not turned on simultaneously, based on data to be transmitted, one of the switch devices being turned on and the other being turned off. The third and fourth switch devices are both turned on when the common mode signal is one of a logic HIGH or logic LOW and both turned off when the common mode signal is the other of a logic HIGH or logic LOW.
摘要:
Apparatus and methods reduce common-mode error. An integrated circuit includes a plurality of signal channels (2a-2c), a first proxy channel (4), and a subtraction block (6a-6c). The signal channels are configured to receive a plurality of input signals and to generate a plurality of output signals, and each of the signal channels has a substantially similar circuit topology. The first proxy channel has a substantially similar circuit topology as the plurality of signal channels, and includes an output that can vary in relation to a common-mode error of the signal channels. The subtraction block is configured to generate a plurality of modified output signals by using the output of the first proxy channel to reduce the common-mode error of the plurality of output signal channels.
摘要:
A voltage-mode driver circuit supporting pre-emphasis includes multiple resistors, and multiple transistors operated as switches. Control signals operating the transistors represent a logic level of an input signal to the driver circuit. To generate a pre-emphasized output, the transistors are operated to connect a parallel arrangement of the resistors between output terminals of the driver and corresponding constant reference potentials. To generate an output in the steady-state, the transistors are operated to connect some of the resistors across the output terminals of the driver, thereby reducing the output voltage. A desired output impedance of the driver, and a desired level of pre-emphasis are obtained by appropriate selection of the resistance values of the resistors. The current consumption of the driver is less in the steady-state than in the pre-emphasis mode.