Teledyne LeCroy Sierra M122 User Manual - Manual (Page 333)

Sierra M122 SAS/SATA Protocol Analyzer User Manual 331
Sierra Trainer Generation Language Teledyne LeCroy
WF_CREDIT_AVAIL 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.
WF_CREDIT_BLOCKED_RECEIVED 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.
WF_CREDIT_BLOCKED primitive
WF_RRDY_NORMAL primitive
WF_RRDY_RESERVED_0 primitive
WF_RRDY_RESERVED_1 primitive
WF_BREAK primitive
WF_CLOSE_CLEAR_AFFILIATION primitive
WF_CLOSE_NORMAL primitive
WF_CLOSE_RESERVED_0 primitive
WF_CLOSE_RESERVED_1 primitive
WF_DONE_ACK_NAK_TIMEOUT primitive
WF_DONE_CREDIT_TIMEOUT primitive
WF_DONE_NORMAL primitive
WF_DONE_RESERVED_0 primitive
WF_DONE_RESERVED_1 primitive
WF_DONE_RESERVED_TIMEOUT_0 primitive
WF_DONE_RESERVED_TIMEOUT_1 primitive
WF_ERROR primitive
WF_HARD_RESET primitive
Wait Command Name Description