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: 59/88页
文件大小: 1137K
代理商: ML60851EGA
Oki Semiconductor
ML60851E
60/84
DMA Transfer Timing (8)
Memory to ML60851E (Demand Transfer, Dual Address Mode)
Parameter
Symbol
Condition
Min.
Max.
Unit
Note
DREQ Disable Time
t1
Load 20 pF
20
ns
FIFO Access Time
t2
FIFO WRITE
42
ns
1
CS Hold Time
t3
0
ns
Write Data Setup Time
t4
30
ns
Write Data Hold Time
t5
2
ns
8-bit DMA
63
ns
2
Recovery Time
t6
16-bit DMA
105
ns
3
Notes: 1. When in Dual Address mode, the DACK is ignored.
A7:A0 specifies the FIFO address.
Refer to WRITE Timing (1) for Address Setup Time and Address Hold Time.
t2 is defined depending on CS or WR which becomes active last.
2. 3-clock time of oscillation clock (clock period: 21 ns)
3. 5-clock time of oscillation clock (clock period: 21 ns)
(Note) Refer to the previous page.
A7:A0
DREQ
CS
t1
t3
t6
t2
t4
t5
Last Packet Write
(Note)
WR
DIN
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