Texas Instruments Corporation

Krishnan Ramabhadran

Himamshu Gopalakrishna Khasnis

Sudheer Prasad

Srinivasan Venkataraman

Anjana Ghosh

Arthur Miller

Baireddy Vijayavardhan

Manoj S Soman

Subhash Madireddy

An aspect of the present invention provides multiple switches in a transceiver, which enable pins provided for transmission and reception to be connected to either a transmit port or a receive port, as desired during operation. As a result, the transceiver can be auto-configured to connect the specific pin, on which signals are being received, to the receive port. Similarly, the transceiver can be auto-configured to connect the specific pin, on which the signals need to be transmitted, to the transmit port. Various design considerations in providing such switches are also described.

Auto-configuration to connect transmit and receive ports to corresponding ports on the other end irrespective of cable connection mis-match

A method for transfer of digital data, comprising a succession of one values and zero values, across a capacitive interface. The interface includes a first capacitor and a second capacitor in parallel, linking a first circuit to a second circuit. First digital data is transferred from the first circuit to the second circuit, and a reference clock is provided by the first circuit and transmitted with the first data to the second circuit for recovery thereby. A first set of bi-level signals representing the zero values of the first data is applied to the first capacitor, such that a repeating level transition of the reference clock corresponds to a first level transition of the first set of bi-level signals. A second set of bi-level signals representing the one values of the first data is applied to the second capacitor, such that the repeating transition of the reference clock corresponds to a second level transition of the second set of bi-level signals. The clock and data are then recovered.

Capacitive data and clock transmission between isolated ICs

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Karnataka, India

Krishnan Ramabhadran