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MB86604L Datasheet, PDF (27/56 Pages) Fujitsu Component Limited. – SCSI-II Protocol Controller (with single-ended driver/receiver) | |||
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MB86604L
(b) Read timing
Parameter
Base signal
Symbol
Position*
DACK âLâ assert time
DREQ âHâ
tRQAK
A
DREQ âLâ negate time
DREQ âHâ assert time (8 bit)
DACK âLâ
DACK âHâ
tAKRQ
B
tAKRQ1
C
DREQ âHâ assert time (16 bit)
DACK âHâ
tAKRQ2
C
DMUDS/DMLDS âLâ assert time
DMR/W set up time
DACK âLâ
tAKDS
D
DMUDS/DMLDS âLâ tsuRW
E
DMR/W hold time
DMUDS/DMLDS âHâ thRW
F
DMUDS/DMLDS âLâ level pulse width
â
twDSL
G
DACK âHâ negate time
DMUDS/DMLDS âLâ tDSAK1
H
DMUDS/DMLDS âHâ tDSAK2
I
Data output defined time
Data output hold time
DMUDS/DMLDS âLâ tvDMD
J
DMUDS/DMLDS âHâ thDMD
K
* : The position number indicates the position in the waveform.
Value
Unit
Min.
Max.
0
â
ns
â
40
ns
â
50
ns
â
2 tCLK + 40 ns
0
â
ns
20
â
ns
20
â
ns
40
â
ns
1 tCLK
â
ns
0
â
ns
â
40
ns
10
â
ns
DREQ
A
t RQAK
B
t AKRQ
DACK
DMR/W
D
t AKDS
E
t suRW
DMUDS/DMLDS
DMD15 to DMD0
UDMDP, LDMDP
J
t vDMD
C
t AKRQ1/2
H
t DSAK1
I
t DSAK2
G
t wDSL
F
t hRW
K
t hDMD
Valid data
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