參數(shù)資料
型號(hào): MB86605PMT
元件分類(lèi): 總線控制器
英文描述: SCSI BUS CONTROLLER, PQFP144
封裝: PLASTIC, LQFP-144
文件頁(yè)數(shù): 46/64頁(yè)
文件大?。?/td> 275K
代理商: MB86605PMT
50
MB86605
(7) Target asynchronous output timing (target
→ initiator)
* : The value of S varies with the setting condition of the asynchronous set up time register (address 17h).
Note: The output timing regulations are not applicable when the data register is EMPTY in the data phase.
Parameter
Symbol
Value
Unit
Min.
Max.
REQ set Low
→ ACK set Low
tROLA
0—
ns
ACK set Low
→ REQ set High
tAROH
—60
ns
REQ set High
→ ACK set High
tROHA
0—
ns
Data bus defined
→ REQ set Low*
tDVLD
S tCLF – 10
ns
ACK set Low
→ data bus hold time
tDIVD
2 tCLF
—ns
ACK set High
→ REQ set Low
tAROL
—40
ns
REQ
ACK
DB7 to 0, P
DB15 to 8, P
t AROH
Valid data
t ROLA
t ROHA
t AROL
t RACY*
t DVLD
t DIVD
t DVLD
*: The time (tRACY) of ACK set Low
→ REQ set Low is defined by the longer time either (tAROH + tROHA + tAROL)
or (tDIVD + tDVLD).
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