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| WB201209B102QNT资料 | |
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WB201209B102QNT PDF Download |
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File Size : 116 KB
Manufacturer:PB Description:For example, if a block of data is to be transferred from RAM to an I/O device, the starting address of the data is loaded into the 82C37A Current and Base Address registers for a particular channel, and the length of the block is loaded into the channels Word Count register. The corresponding Mode register is programmed for a memory-to-I/O operation (read transfer), and various options are selected by the Command register and the other Mode register bits. The channels mask bit is cleared to enable recognition of a DMA request (DREQ). The DREQ can either be a hardware signal or a software command. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：WB201209B102QNT 厂 家：PB 封 装：08＋ 批 号：8000 数 量：8000 说 明：深圳市荣发电子，专营贴片电容，电感，磁珠，蜂鸣器，咪头，保险丝，连接器,继电器，二三极管，LED,晶振，真诚为广大客户提供配套服务 |
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