參數(shù)資料
型號: ML60851AGA
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): 29/45頁
文件大?。?/td> 358K
代理商: ML60851AGA
ML60851A
Semiconductor
35/44
DMA Transfer Timing (7)
Memory to ML60851A (Demand Transfer, Single Address Mode)
Parameter
Symbol
Condition
Note
DREQ Disable Time
t1
t2
DACK Hold Time
Write Data Setup Time
t4
Unit
ns
Max.
Min.
—20
42
Write Data Hold Time
t5
ns
FIFO Access Time
t3
ns
Recovery Time
t6
ns
Load 20 pF
8-bit DMA
16-bit DMA
0
30
5
63
105
1
2
3
FIFO WRITE
Notes: 1. When in Single Address mode, A7:A0 and CS and ignored.
2. 3-clock time of oscillation clock (clock period: 21 ns).
3. 5-clock time of oscillation clock (clock period: 21 ns).
t1
t3
Last Packet Write
t4
t2
DREQ
DACK
WR
DIN
t5
t6
(Note)
(Note) The last Write to reach the byte size (maximum packet size) specified by the EP1 Payload
Register.
To terminate DMA transfer before reaching the maximum packet size, set EP1 Packet Ready
by writing "1" to the EP1 Transmit Packet Ready bit.
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