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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP41010E/P датащи(PDF) 20 Page - Microchip Technology |
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MCP41010E/P датащи(HTML) 20 Page - Microchip Technology |
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20 / 32 page  MCP41XXX/42XXX DS11195C-page 20 2003 Microchip Technology Inc. FIGURE 5-4: Daisy-Chain Configuration. Microcontroller SO CS SCK SI SO CS SCK SI CS SCK SI CS SCK SO Device 1 Device 2 Device 3* If you want to load the following command/data into each part in the chain. Device 1 XX10XX11 Device 2 XX01XX10 Device 3 XX10XX00 EXAMPLE: Start by setting CS low and clocking in the command and data that will end up in Device 3 (16 clocks). After 16 clocks, Device 2 and Device 3 will both have all zeros clocked in from the previous part’s shift register. Clock-In the command and data for Device 2 (16 more clocks). The data that was pre- viously loaded gets shifted to the next device on the chain. After 32 clocks, Device 2 has the data previously loaded into Device 1 and Device 3 gets 16 more zeros. Clock-In the data for Device 1 (16 more clocks). The data that was previously loaded into Device 1 gets shifted into Device 2 and Device 3 contains the first byte loaded. Raise the CS line to execute the com- mands for all 3 devices at the same time. After 48 clocks, all 3 devices have the proper command/ data loaded into their shift registers. * Last device on a daisy-chain may be a single channel MCP41XXX device. 11001100 11110000 10101010 Device 1 XX10XX00 Device 2 00000000 Device 3 00000000 10101010 00000000 00000000 Device 1 XX01XX10 Device 2 XX10XX00 Device 3 00000000 11110000 10101010 00000000 Device 1 XX10XX11 Device 2 XX01XX10 Device 3 XX10XX00 11001100 11110000 10101010 |
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