參數(shù)資料
型號: ML60852
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: USB Device Controller
中文描述: USB設(shè)備控制器
文件頁數(shù): 74/81頁
文件大?。?/td> 451K
代理商: ML60852
PEDL60852-01
1
Semiconductor
ML60852
74/81
DMA Transfer Timing (3)
ML60852 to Memory (Demand Transfer, Single Address Mode)
Parameter
Symbol
t
1
t
2
t
3
t
4
Condition
Load 20 pF
Min.
0
0
63
Max.
20
46
Unit
ns
ns
ns
ns
ns
Note
DREQ
Disable Time
DACK Hold Time
Read Data Delay Time
Data Hold Time
Load 20 pF
(1)
8-bit DMA
(2)
Recovery Time
t
5
16-bit DMA
105
ns
(3)
Notes: (1) When in Single Address mode, t
3
is defined depending on DACK or
RD
which becomes
active last.
A7: A0 and
CS
are ignored.
(2) 3-clock time of oscillation clock (clock period: 21 ns).
(3) 5-clock time of oscillation clock (clock period: 21 ns).
Last Packet Read
DREQ
DOUT
RD
DACK
t
4
t
3
t
5
t
2
t
1
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