Fujitsu MAW3073 SERIES Specifications page 89

9) TARG drives the DB(15-0) signals to their desired pCRC values and waits at least one
transmit setup time.
10) TARG negates the REQ signal and holds the DB(15-0) signals for a minimum of one
transmit hold time and the P_CRCA signal asserted for at least a pCRC transmit hold time.
11) TARG holds the REQ signal negated for at least one transmit REQ negation period with
P_CRCA transitioning since the last REQ negation.
If the target determines no pad field is required, the the transmission sequence is the following
way.
1) TARG waits at least one pCRC transmit hold time since the last REQ negation to assert
P_CRCA.
2) TARG waits at least one transmit hold time since the last REQ negation to assert the
DB(15-0) signals to their desired pCRC values.
3) TARG waits at least the longer of a pCRC transmit setup time from the assertion of
P_CRCA or a transmit setup time from DB(15-0) being driven with valid pCRC data.
4) TARG waits until the INIT has responded with all ACK transitions for the previous data
group.
5) TARG waits at least one transmit REQ negation period with P_CRCA transitioning since
the last REQ negation.
6) TARG asserts the REQ signal and holds the DB(15-0) signals valid for a minimum of one
transmit hold time and the REQ signal asserted for a minimum of a transmit assertion
period.
7) TARG drives the DB(15-0) signals to their desired pCRC values and waits at least one
transmit setup time.
8) TARG negates the REQ signal and holds the DB(15-0) signals for a minimum of one
transmit hold time and the P_CRCA signal asserted for a minimum of one pCRC transmit
hold time.
9) TARG holds the REQ signal negated for at least one transmit REQ negation period with
P_CRCA transitioning since the last REQ negation.
After either of the above sequence is complete the TARG has ended a data Group.
INIT fetches the values from the DB(15-0) signals within one receive hold time of the
REQ signal. And then responds with an ACK transition.
The INIT continues to use the pad bytes, if any, for checking against the computed pCRC
for the current data group. Upon receipt of the last byte of the pCRC field, the received
pCRC and computed pCRC shall be compared. If they do match (i.e., no pCRC error).
then the INIT negates the ACK signal.
C141-C011 1-71