MB86606A Datasheet, PDF (50/64 Pages) Fujitsu Component Limited. – FAST-20 SCSI Protocol Controller

MB86606A
(6) Target asynchronous input timing (initiator → target)
Parameter
Symbol
REQ set Low → ACK set Low
ACK set Low → REQ set High
REQ set High → ACK set High
Data bus defined → ACK set Low
ACK set Low → data bus hold time
ACK set High → REQ set Low
ACK set Low → REQ set Low*
tROLA
tAROH
tROHA
tDTSU
tDHLD
tAROL
tRACY
Value
Unit
Min.
Max.
0
—
ns
—
60
ns
0
—
ns
10
—
ns
20
—
ns
—
40
ns
—
3 tCLF + 40
ns
* : tRACY (ACK set Low → REQ set Low) is defined as either longer time of (tAROH + tROHA +tAROL) or tRACY itself
Note: The input timing regulations are not applicable when the data register is FULL in the data phase.
REQ
ACK
DB7 to 0, P
DB15 to 8, P
t ROLA
t AROH
t RACY
t ROHA
t DTSU
t DHLD
Data
t AROL
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