Wake-up-on-ring power conservation for host signal processing communication system

  • US 5,931,950 A
  • Filed: 06/17/1997
  • Issued: 08/03/1999
  • Est. Priority Date: 06/17/1997
  • Status: Expired due to Term
First Claim
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1. A host signal processing communication system comprising:

  • a host processor;

    a device for connection to communication lines, the device being operable in a first mode and a second mode, wherein the device periodically asserts a first signal while operating in the first mode;

    software for processing information transferred via the communication lines and the device, the software being executed by the host processor in response to an interrupt signal; and

    selection logic coupled between the device and the host processor, the selection logic being coupled to select the interrupt signal provided to the host processor, wherein the selection logic selects the first signal as the interrupt signal when the device is operating in the first mode and selects a second signal from the communication lines as the interrupt signal when the device is operating in the second mode.

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