Fujitsu MAN3184 SERIES Specifications page 78

5) INIT fetches the values from DB(15-0) signals within a receive hold time of the transition
of the REQ signal and it also fetches the value from the P_CRCA signal within a pCRC
receive hold time of the transition of the REQ signal. Then INIT responds with an ACK
transition.
(b) Data Group Data field transfer from INIT to TARG
When the I/O signal is false, data is transferred from the INIT to the TARG. Other condition is the
same in the section (a).
1) INIT drives the DB(15-0) signals to their desired values after detecting a REQ transition
with P_CRCA signal negated.
2) INIT waits at least a transmit setup time and transits ACK signal.
3) INIT holds the DB(15-0) signals valid for at least a transmit hold time and ACK signal for
a minimum of a transmit assertion period if asserted or a transmit negation period if
negated.
4) TARG fetches the value of the DB(15-0) signals within a receive hold time of the
transition of the ACK.
(c) Data Group Pad field and pCRC field transfer from TARG to INIT
The target determines a pad field is required if the I/O signal is true, the target has completed the
data field transfer of the current data group, and REQ signal is asserted. (Pad field required)
1) TARG waits at least one pCRC transmit hold time since the last REQ assertion to assert
P_CRCA.
2) TARG waits at least one transmit hold time since the last REQ assertion to assert the
DB(15-0) signals to their desired pad 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 pad data.
4) TARG waits until the initiator has responded with all ACK transitions for the previous
data group.
5) TARG waits at least one transmit REQ assertion period with P_CRCA transitioning since
the last REQ assertion.
6) TARG negates the REQ signal hold the DB(15-0) signals valid for a minimum of one
transmit hold time and holds the REQ signal negated for a minimum of a transmit negation
period.
7) TARG drives the DB(15-0) signals to their desired pCRC values and waits at least one
transmit setup time.
8) TARG asserts the REQ signal and holds the DB(15-0) signals for a minimum of one
transmit hold time and the REQ signal asserted for a minimum of a transmit assertion
period.
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