MB86606A Datasheet, PDF (33/64 Pages) Fujitsu Component Limited. – FAST-20 SCSI Protocol Controller

MB86606A
(3) Read timing (burst mode for 80 series)
Parameter
DREQ set High → DACK set Low
IORD set Low → DREQ set Low
DREQ set Low → DREQ set High
DACK set Low → IORD set Low
DMBHE, DMA0 setup time
IORD “L” level pulse width
IORD set High → DACK set High
DMBHE, DMA0 hold time
Data output defined time
Data output hold time
Symbol
tDHAL
tALDL
tDLDH
tALRL
tDARS
tDRD
tRHAH
tDARH
tDRLD
tDRHD
Value
Min.
Max.
0
—
—
25
0
—
0
—
10
—
25
—
0
—
10
—
—
25
10
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DREQ
DACK
DMBHE
DMA0
IORD
DMD15 to 0
UDMDP, LDMDP
t DHAL
t ALDL
t DLDH
t ALRL
t RHAH
t DARS
t DRD
t DARH
t DRLD
Valid data
t DRHD
33