參數(shù)資料
型號: TSB43AA82GGW
廠商: TEXAS INSTRUMENTS INC
元件分類: 微控制器/微處理器
英文描述: 2 CHANNEL(S), 400M bps, SERIAL COMM CONTROLLER, PBGA176
封裝: PLASTIC, BGA-176
文件頁數(shù): 11/146頁
文件大?。?/td> 770K
代理商: TSB43AA82GGW
98
Figure 94 shows the SCSI burst mode (2) expanded to better show signal timing. Table 95 shows timing values
for Figure 94.
BDREQ(out)
BDACK(in)
BDIO(in)
BDIF(in)
tsu(BD)
th(BD)
td(ACKWRHREQL)
BDWR(in)
tsu(BD)
th(BD)
twcycle
DATA[n]
DATA[n+1]
BDIF[n]
BDIF[n+1]
(BDWR = H)
tw(BDWR/ACK)
NOTE: td(ACKHREQL) is the duration from when both BDACK and BDWR / BDRD are asserted (rising edge) until BDREQ is negated (falling edge).
BDREQ remains active (asserted) while the FIFO has capacity.
Figure 94. SCSI Burst Mode Write (2)
Table 95. SCSI Burst Mode Write (2)
TITLE
ITEM
MIN
MAX
UNIT
td(ACKWRHREQL)
BDREQ delay
20
55
ns
td(ACKHWRH)
BDACK to BRWR
0
ns
td(WRLACKL)
BRWR to BDACK
0
ns
tsu(BD)
SCSI data input setup
7
ns
th(BD)
SCSI data input hold
0
ns
tw(BDWR/ACK)
BDWR/BDACK
22
ns
twcycle
BDWR/BDACK
44
ns
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