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Are packets have the same ACKID when they are belong to the same transaction ?

xi su
Intellectual 725 points

It is said the ACKID (Acknowledgement ID) is increased for each transaction in both sides of the SRIO interface , but transactions may span multiple packets many times, so are these packets  have the same ACKID then ? 

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    TI__Mastermind 28085 points

    Hi Xi Su,

    Acknowledge ID (ackID) is the unique 5 bit value that is used to track packets for the duration of the exchange. Packets are transmitted with serially increasing ackID values. The ackID is not covered by CRC, but by protocol. When a packet is successfully received, it is acknowledged using the ackID of the packet. A transmitter must retain a packet until it has been successfully acknowledged by the link partner.

    if you need more information about ACKID, please refer this link

    http://www.ti.com/lit/sprugw1