SENSOR POLLING UNIT FOR MICROPROCESSOR INTEGRATION

摘要

A sensor polling unit for microprocessor integration comprises a configuration logic block associated with each of a plurality of external sensor devices. Each configuration logic block issues a read command for predetermined sensor data registers of the associated external sensor device via a read trigger supplied by a trigger generator. A global timer based on a microprocessor clock signal supplies a global time value to the trigger generators. A polling state machine is operatively coupled to the configuration logic blocks for receipt of respective read commands, and issues a corresponding read command to the external sensor device through a standardized bi-directional data communication interface connected to the external sensor device. The polling state machine receives register data transmitted by the external sensor device in response to the read command and transmits the received register data to a microprocessor accessible data memory area for storage.

主权项

1. A sensor polling unit for microprocessor integration, comprising:
a sensor register model comprising a configuration logic block associated with each sensor device of a plurality of external sensor devices, each configuration logic block being configured to issue a read command for one or more predetermined sensor data registers of the associated external sensor device in accordance with a read trigger supplied by a trigger generator of the configuration logic block, a global timer based on a clock signal of the microprocessor to supply a global time value to the trigger generators, a polling state machine operatively coupled to the plurality of configuration logic blocks for receipt of respective read commands therefrom, said polling state machine being configured to issue a corresponding read command to the external sensor device through a standardized bi-directional data communication interface connected to the external sensor device, wherein the polling state machine is further configured to receive register data transmitted by the external sensor device in response to the read command and transmit the received register data to a microprocessor accessible data memory area for storage.