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): 76/81頁
文件大小: 451K
代理商: ML60852
PEDL60852-01
1
Semiconductor
ML60852
76/81
DMA Transfer Timing (5)
Memory to ML60852 (Single Transfer, Single Address Mode)
Parameter
Symbol
t
1
t
2
t
3
t
4
t
5
t
6
Condition
Load 20 pF
Min.
42
0
30
5
63
Max.
20
63
Unit
ns
ns
ns
ns
ns
ns
ns
Note
DREQ
Disable Time
DREQ
Enable Time
FIFO Access Time
DACK Hold Time
Write Data Setup Time
Write Data Hold Time
(4)
(1)
FIFO WRITE
8-bit DMA
(2)
Recovery Time
t
7
16-bit DMA
105
ns
(3)
Notes: (1) When in Single Address mode,
CS
and A7: A0 are ignored.
(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).
DREQ
DIN
WR
DACK
t
4
t
3
t
5
t
6
t
7
t
2
t
1
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