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データシートサーチシステム |
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データシートサーチシステム |
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GS6151 データシート(PDF) 39 Page - Semtech Corporation |
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GS6151 データシート(HTML) 39 Page - Semtech Corporation |
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39 / 77 page  GS6151 Final Data Sheet Rev.4 PDS-060389 August 2015 39 of 77 Semtech Proprietary & Confidential www.semtech.com The steps required for the application host processor to write to the Configuration and Status Registers via the GSPI, are as follows: 1. Set Command Word for write access (R/W = 0) to the local registers 0h-80h; set Auto Increment; set the Unit Address field in the Command Word to match the configured DEVICE_UNIT_ADDRESS which will be zero. Write the Command Word. 2. Write the Data Word to be written to the first register. 3. Write the Data Word to be written to the next register in Auto Increment mode, etc. Read access is the same as the above with the exception of step 1, where the Command Word is set for read access (R/W = 1). Note: The UNIT ADDRESS field of the Command Word must always match DEVICE_UNIT_ADDRESS for an access to be accepted by the device. Changing DEVICE_UNIT_ADDRESS to a value other than 0 is only required if multiple devices are connected to a single chip select (in Loop-Through or Bus-Through configuration.) |
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