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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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WM8772SEDS/RV Fiches technique(PDF) 29 Page - Wolfson Microelectronics plc |
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WM8772SEDS/RV Fiches technique(HTML) 29 Page - Wolfson Microelectronics plc |
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29 / 73 page  Production Data WM8772EDS – 28 LEAD SSOP w PD Rev 4.2 October 2005 29 SOFTWARE CONTROL INTERFACE OPERATION The WM8772EDS is controlled using a 3-wire serial interface in software mode or pin programmable in hardware mode. The control mode is selected by the state of the MODE pin. 3-WIRE (SPI COMPATIBLE) SERIAL CONTROL MODE MD/DM is used for the program data, MC/IWL is used to clock in the program data and ML/I2S is used to latch the program data. MD/DM is sampled on the rising edge of MC/IWL. The 3-wire interface protocol is shown in Figure 34. B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 ML/I2S MC/IWL MD/DM Figure 34 3-Wire SPI Compatible Interface 1. B[15:9] are Control Address Bits 2. B[8:0] are Control Data Bits 3. ML/I2S is edge sensitive – the data is latched on the rising edge of ML/I2S. |
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