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| DG403DY-E3资料 | |
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DG403DY-E3 PDF Download |
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File Size : 116 KB
Manufacturer:SIL Description:DMA REQUEST: The DMA Request (DREQ) lines are individual asynchronous channel request inputs used by peripheral circuits to obtain DMA service. In Fixed Priority, DREQ0 has the highest priority and DREQ3 has the lowest priority. A request is generated by activating the DREQ line of a channel. DACK will acknowledge the recognition of a DREQ signal. Polarity of DREQ is programmable. RESET initializes these lines to active high. DREQ must be maintained until the corresponding DACK goes active. DREQ will not be recognized while the clock is stopped. Unused DREQ inputs should be pulled High or Low (inactive) and the corresponding mask bit set. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：DG403DY-E3 厂 家：SIL 封 装： 批 号：0648/52 数 量：485 说 明：Bid Price |
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