參數(shù)資料
型號(hào): A8237
廠商: Altera Corporation
英文描述: PROGRAMMABLE DMA CONTROLLER
中文描述: 可編程DMA控制器
文件頁數(shù): 18/22頁
文件大?。?/td> 269K
代理商: A8237
22
Altera Corporation
a8237 Programmable DMA Controller Data Sheet
Timing
Waveforms
Figure 3
shows the timing waveforms for the
a8237
MegaCore function.
Figure 3. a8237 Timing Waveforms (Part 1 of 3)
clk
dreq
hrq
hlda
aen
adstb
dbin
dbout
dben
aout
dack
niorout
nmemw
neopout
S0
S1
S2
S3
S4
S2
S3
S4
SI
Two-Word DMA Cycle
SI
SI
Valid Data
Valid Data
A8-A15
Valid Address
Valid Address
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