參數(shù)資料
型號: ML60851D
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): 52/82頁
文件大?。?/td> 705K
代理商: ML60851D
ML60851D
Semiconductor
52/82
PEDL60851D-01
DMA Transfer Timing (1)
ML60851D to Memory (Single Transfer, Single Address Mode)
Parameter
Symbol
t
1
t
2
t
3
t
4
t
5
Condition
Load 20 pF
Note
DREQ
Disable Time
DREQ
Enable Time
DACK Hold Time
Read Data Delay Time
Data Hold Time
1
Unit
ns
ns
ns
ns
ns
ns
ns
Max.
20
63
Min.
25
25
0
0
Recovery Time
t
6
2
3
63
105
Load 20 pF
Load 20 pF
8-bit DMA
16-bit DMA
4
Notes: 1. When in Single Address mode,
CS
and A7:A0 are ignored.
t
1
and t
4
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 t
2
by setting the DMA interval register (DMAINTVL).
t
1
t
2
t
5
t
4
DREQ
DACK
RD
DOUT
t
3
t
6
DATA OUT
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