SAS-2: A question on SSP Link Layer Protocol
steve.finch at st.com
Fri Sep 8 08:53:34 PDT 2006
* From the T10 Reflector (t10 at t10.org), posted by:
* Stephen FINCH <steve.finch at st.com>
In section 126.96.36.199 SSP_RF (receive frame control) state machine, in the last
paragraph and its bullet items it states:
A) if the last Rx Balance Status message received had an argument of
Balanced, send a Frame Received (ACK/NAK Balanced) confirmation to the port
B) if the last Rx Balance Status message received had an argument of
Not Balanced, send a Frame Received (ACK/NAK Not Balanced) confirmation to
the port layer.
Since ACKs and NAKs can be sent at any where within an SSP connection
including within a frame being transmitted, can anyone provide an example of
when case B will ever occur? I.e., after receiving a frame the ACK or NAK of
the previous frame has not been sent?
Am I missing something?
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