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Efficient communication of transaction types using separate and orthogonal attribute fields in packet headers transferred between hubs in a computer system

  • US 6,175,884 B1
  • Filed: 11/03/1998
  • Issued: 01/16/2001
  • Est. Priority Date: 11/03/1998
  • Status: Expired due to Term
First Claim
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1. An apparatus, comprising:

  • a data path input/output unit to output a packet header, the packet header including a request/completion field to indicate whether the packet header is a request packet header or a completion packet header;

    a read/write field to indicate whether the packet header is for a read packet or for a write packet, the read/write field separate from the request/completion field, the read/write field along with the request/completion field further to indicate whether a length of data is to follow the packet header, the request/completion field and the read/write field located in the first byte of the packet header; and

    a data length field to indicate the length of data.

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