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WM8950 Arkusz danych(PDF) 28 Page - Wolfson Microelectronics plc |
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WM8950 Arkusz danych(HTML) 28 Page - Wolfson Microelectronics plc |
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28 / 52 page ![]() WM8950 Preliminary Technical Data w PTD Rev 2.1 June 2005 28 A dedicated buffer is available for tieing off unused analogue input pins as shown below Figure 13. This buffer can be enabled using the BUFIOEN register bit. Figure 13 Unused Input Pin Tie-off Buffers THERMAL SHUTDOWN To protect the WM8950 from overheating a thermal shutdown circuit is included. If the device temperature reaches approximately 125 0C and the thermal shutdown circuit is enabled (TSDEN=1), an interrupt can be generated. See the GPIO and Interrupt Controller section for details. REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION R49 Output control 1 TSDEN 1 Thermal Shutdown Enable 0 : thermal shutdown disabled 1 : thermal shutdown enabled Table 23 Thermal Shutdown |
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