參數(shù)資料
型號: ML60851EGA
廠商: OKI ELECTRIC INDUSTRY CO LTD
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP44
封裝: 0.80 MM PITCH, PLASTIC, QFP-44
文件頁數(shù): 51/88頁
文件大?。?/td> 1137K
代理商: ML60851EGA
Oki Semiconductor
ML60851E
53/84
DMA Transfer Timing (1)
ML60851E to Memory (Single Transfer, Single Address Mode)
Parameter
Symbol
Condition
Min.
Max.
Unit
Note
DREQ Disable Time
t1
Load 20 pF
20
ns
DREQ Enable Time
t2
63
ns
4
DACK Hold Time
t3
0
ns
Read Data Delay Time
t4
Load 20 pF
25
ns
1
Data Hold Time
t5
Load 20 pF
0
25
ns
8-bit DMA
63
ns
2
Recovery Time
t6
16-bit DMA
105
ns
3
Notes: 1. When in Single Address mode,
CS and A7:A0 are ignored.
t1 and t4 are defined depending on DACK or RD which becomes active last.
2. 3-clock time of oscillation clock (clock period: 21 ns)
3. 5-clock time of oscillation clock (clock period: 21 ns)
4. It is possible to increase t2 by setting the DMA interval register (DMAINTVL).
DREQ
t4
t1
t3
t2
t6
t5
DACK
RD
DOUT
DATA OUT
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