Fujitsu MAW3073 SERIES Specifications page 85

(b) The case of the I/O signal is false (transfer to the TARG)
1) The INIT detects a REQ assertion.
2) The INIT first drives the DB(7-0,P_CRCA) or DB(15-0,P_CRCA,P1) signals to their
values.
3) The INIT delays at least one Transmit Setup Time.
4) The INIT asserts the ACK signal.
5) The INIT holds the DB(7-0,P_CRCA) or DB(15-0,P_CRCA,P1) signals valid for at least
one Transmit Hold Time after the assertion of the ACK signal.
6) The INIT asserts the ACK signal for a minimum of one Transmit Assertion Period.
7) The INIT may then negate the ACK signal and change or release the DB(7-0,P_CRCA) or
DB(15-0,P_CRCA,P1) signals.
8) The TARG reads the value of the DB(7-0,P_CRCA) or DB(15-0,P_CRCA,P1) signals
within one Receive Hold Time of the transition of the ACK signal to true.
Figure 1.32 shows the timing requirements for ST synchronous mode.
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