参数资料
型号: ML60851EGA
厂商: OKI ELECTRIC INDUSTRY CO LTD
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP44
封装: 0.80 MM PITCH, PLASTIC, QFP-44
文件页数: 53/88页
文件大小: 1137K
代理商: ML60851EGA
Oki Semiconductor
ML60851E
55/84
DMA Transfer Timing (3)
ML60851E to Memory (Demand Transfer, Single Address Mode)
Parameter
Symbol
Condition
Min.
Max.
Unit
Note
DREQ Disable Time
t1
Load 20 pF
20
ns
DACK Hold Time
t2
0
ns
Read Data Delay Time
t3
Load 20 pF
25
ns
1
Data Hold Time
t4
Load 20 pF
0
25
ns
8-bit DMA
63
ns
2
Recovery Time
t5
16-bit DMA
105
ns
3
Notes: 1. When in Single Address mode, t3 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)
DREQ
DACK
RD
DOUT
t2
t1
t5
t4
Last Packet Read
t3
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