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Wait Command Name
WF_NAK_RESERVED_2
WF_CREDIT_AVAIL
WF_CREDIT_BLOCKED_RECEIVED
WF_CREDIT_BLOCKED
WF_RRDY_NORMAL
WF_RRDY_RESERVED_0
WF_RRDY_RESERVED_1
WF_BREAK
WF_CLOSE_CLEAR_AFFILIATION
WF_CLOSE_NORMAL
WF_CLOSE_RESERVED_0
WF_CLOSE_RESERVED_1
WF_DONE_ACK_NAK_TIMEOUT
420
Sierra Trainer Generation Commands
Description
primitive
Credit Available
This function is based on a 10‐bit
counter whose value can range from ‐
512 to +511 (twos‐complement). This
counter is cleared by sending or
receiving an OPEN_ACCEPT primitive,
or by execution of a
CLEAR_CREDIT_AVAIL command in the
script.
This counter is incremented by
receiving any SAS RRDY primitive and
is decremented by sending SAS SOF.
The wait_for command will wait for
this counter to have a positive value
between +1 and +511. This wait_for
condition is intended to be used
before sending a SAS frame within a
connection.
ClEAR_CREDIT_AVAIL clears this credit
function.
CreditBlocked Received
This function is based on a flip‐flop
which is cleared by sending or
receiving an OPEN_ACCEPT primitive.
It is set by receiving a
CREDIT_BLOCKED primitive. It is
intended to be used in conjunction
with wf_credit_avail to prevent script
hangs in those cases where there is
not going to be any more credit
granted.
primitive
primitive
primitive
primitive
primitive
primitive
primitive
primitive
primitive
primitive
S ierra M6‐2 SAS/SATA Protocol Analyzer User Manual
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