Methods and apparatus for reducing power consumption within embedded systems

摘要

Methods and apparatus for managing connections between multiple internal integrated circuits (ICs) of, for example, a high-speed internal device interface. Improved schemes for coordination of connection and disconnection events, and/or suspension and resumption of operation for a High-Speed Inter-Chip™ (HSIC) interface are disclosed. In one exemplary embodiment, a “device”-initiated and “host”-initiated connect/disconnect procedure is disclosed, that provides improved timing, synchronization, and power consumption.

主权项

1. A method for managing connections between a first processor and a second processor of an internal device interface, comprising:
performing a handshake procedure; responsive to the handshake procedure, connecting the first processor to the second processor, the connecting comprising causing the first processor to assert a ready signal; transacting data via the connection; and responsive to a suspension condition, suspending the connection, the suspending the connection comprising causing the first processor to de-assert the ready signal.