參數(shù)資料
型號: ML60851CGA
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: 9 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44
文件頁數(shù): 53/67頁
文件大?。?/td> 389K
代理商: ML60851CGA
ML60851C
Semiconductor
57/67
PEDL60851C-02
DMA Transfer Timing (6)
Memory to ML60851C (Single Transfer, Dual Address Mode)
Parameter
Symbol
Condition
Note
DREQ Disable Time
t1
DREQ Enable Time
t2
Write Data Setup Time
Unit
ns
Max.
Min.
—20
Write Data Hold Time
t4
ns
FIFO Access Time
t3
ns
t5
Recovery Time
ns
t6
ns
Load 20 pF
63
30
2
42
63
105
2
3
8-bit DMA
16-bit DMA
1
FIFO WRITE
4
t2
t3
t4
t5
A7:A0
DREQ
CS
WR
DIN
t6
t1
Notes: 1. When in Dual Address mode, the DACK is ignored.
t1 and t3 are defined depending on CS or WR which becomes active last.
Refer to WRITE Timing (1) for Address Setup Time and Address Hold Time.
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).
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