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Computer system including an enhanced communication interface for an ACPI-compliant controller

  • US 6,131,131 A
  • Filed: 01/22/1998
  • Issued: 10/10/2000
  • Est. Priority Date: 01/22/1998
  • Status: Expired due to Term
First Claim
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1. A computer system comprising:

  • a processor;

    a host bus coupled to the processor;

    an embedded controller coupled to the processor via the host bus, the embedded controller including a buffer and control logic that is capable of controlling transfer data bytes via the buffer byte-by-byte and monitoring a buffer full bit at the transfer of each byte;

    a local bus coupled to the embedded controller;

    a device coupled to the embedded controller via the local bus;

    an extended interface coupled to the processor via the host bus and coupled to the device and the embedded controller via the local bus, the extended interface including a multiple-byte buffer; and

    an extended control logic coupled to the embedded controller, the extended control logic capable of controlling the embedded controller and the extended interface to transfer a plurality of data bytes for a single monitoring of the buffer full bit,the processor being capable of loading data into the multiple-byte buffer, sending a transaction command to the extended control logic, and waiting for the commanded transaction to complete, the extended control logic controlling execution of the transaction.

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