MB86606A Datasheet, PDF (35/64 Pages) Fujitsu Component Limited. – FAST-20 SCSI Protocol Controller

MB86606A
(5) Read timing (burst mode for 68 series)
Parameter
DREQ set High → DACK set Low
DMUDS/DMLDS set Low → DREQ set Low
DREQ set Low → DREQ set High
DACK set Low → DMUDS/DMLDS set Low
R/W setup time
DMUDS/DMLDS “L” level pulse width
DMUDS/DMLDS set High → DACK set High
R/W hold time
Output data valid time
Output data hold time
Symbol
tDHAL
tALDL
tDLDH
tALDL
tDRWS
tDDS
tDHAH
tDRWH
tDRLD
tDRHD
Value
Min.
Max.
0
—
—
25
0
—
5
—
10
—
25
—
0
—
10
—
—
25
10
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DREQ
DACK
DMR/W
DMUDS/DMLDS
DMD15 to 0
UDMDP, LDMDP
t DHAL
t ALDL
t DLDH
t ALDL
t DHAH
t DRWS
t DDS
t DRWH
t DRLD
Valid data
t DRHD
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