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): 55/88頁
文件大小: 1137K
代理商: ML60851EGA
Oki Semiconductor
ML60851E
57/84
DMA Transfer Timing (5)
Memory to ML60851E (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
FIFO Access Time
t3
FIFO WRITE
42
ns
1
DACK Hold Time
t4
0
ns
Write Data Setup Time
t5
30
ns
Write Data Hold Time
t6
2
ns
8-bit DMA
63
ns
2
Recovery Time
t7
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 t2 by setting the DMA interval register (DMAINTVL).
DREQ
DACK
WR
t1
t4
t2
t7
t3
t6
t5
DIN
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