參數資料
型號: MB86604LPFV
元件分類: 總線控制器
英文描述: SCSI BUS CONTROLLER, PQFP100
封裝: PLASTIC, LQFP-100
文件頁數: 28/56頁
文件大小: 382K
代理商: MB86604LPFV
34
MB86604L
(b) Output timing (initiator
→ target)
*1: The position number indicates the position in the waveform.
*2: “S” value is based on the asychronous set up time setting register (address 17h).
Note: The output timing definitions are not applied when the data register is EMPTY in the data phase.
Parameter
Symbol
Value
Unit
Base signal
Position*1
Min.
Max.
REQ “H” negate time
ACK “L”
tAKRQH
A0
ns
ACK “H” negate time
REQ “H”
tRQAKH
B
60
ns
REQ “L” assert time
ACK “H”
tAKRQL
C10
ns
Time from output data valid to ACK “L” assert
*2
—tDBAK
D
S tCLK – 10
—ns
Output data hold time
REQ “H”
thDB
E2 tCLK
—ns
ACK “L” assert time
REQ “L”
tRQAK1
F
40
ns
A
F
Valid data
DB7 to DB0
DBP
*
E
REQ
ACK
C
B
D
Valid data
D
t RQAK2
t RQAK1
t AKRQL
t RQAKH
t AKRQH
t DBAK
t hDB
t DBAK
*: The REQ “H”
→ ACK “L” time (tRQAK2) is defined by either longer of (tRQAKH + tAKRQL + tRQAK1) or (thDB +
tDBAK) (see the output timing waveform).
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