Texas Instruments Corporation

Soumi Paul

Suzanne Mary Vining

Win Naing Maung

Mayank Garg

Bharath Kumar Singareddy

Anant Shankar Kamath

Rakesh Hariharan

Vivekkumar Ramanlal Vadodariya

A circuit includes signal conditioner circuitry, level shifter circuitry, and state detector and controller circuitry coupled between the signal conditioner circuitry and the level shifter circuitry. The state detector and controller circuitry includes receiver circuitry and a finite state machine coupled to the receiver circuitry. The finite state machine is configured to detect a first data rate from signals, control operation of the signal conditioner circuitry responsive to detecting the first data rate, and control operation of the level shifter circuitry during a second data rate.

Data bus signal conditioner and level shifter

A bus repeater includes first and second bus ports, a first termination resistor network coupled to the first bus port, a second termination resistor network coupled to the second bus port, and a power state change detection circuit coupled to the second bus port. The power state change detection circuit is configured to detect a power state change initiated by a device coupled to the first bus port. The detection of the power state change includes a determination that a voltage on the second bus port exceeds a threshold. Responsive to detection of the power state change, the power state change detection circuit is configured cause a change in a configuration of at least one of the first or second termination resistor networks.

Detection of a power state change in a serial bus repeater

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New Delhi, India

Soumi Paul