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WM8321 データシート(PDF) 34 Page - Wolfson Microelectronics plc |
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WM8321 データシート(HTML) 34 Page - Wolfson Microelectronics plc |
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34 / 253 page ![]() WM8321 Production Data w PD, February 2012, Rev 4.0 34 ADDRESS BIT LABEL DEFAULT DESCRIPTION 1 RESET_HW 0 Most recent ON event type 0 = Not caused by Hardware Reset 1 = Caused by Hardware Reset 0 RESET_WDOG 0 Most recent ON event type 0 = Not caused by the Watchdog 1 = Caused by a Device Reset triggered by the Watchdog timer R16399 (400Fh) OFF Source 13 OFF_INTLDO_ERR 0 Most recent OFF event type 0 = Not caused by LDO13 Error condition 1 = Caused by LDO13 Error condition 12 OFF_PWR_SEQ 0 Most recent OFF event type 0 = Not caused by Power Sequence Failure 1 = Caused by a Power Sequence Failure 11 OFF_GPIO 0 Most recent OFF event type 0 = Not caused by GPIO input 1 = Caused by GPIO input 10 OFF_PVDD 0 Most recent OFF event type 0 = Not caused by PVDD 1 = Caused by the SYSLO or SHUTDOWN threshold 9 OFF_THERR 0 Most recent OFF event type 0 = Not caused by temperature 1 = Caused by over-temperature 6 OFF_SW_REQ 0 Most recent OFF event type 0 = Not caused by software OFF 1 = Caused by software OFF command (CHIP_ON = 0) 4 OFF_ON_PIN 0 Most recent OFF event type 0 = Not caused by the ON pin 1 = Caused by the ON pin Table 2 Power State Control Registers Table 3 lists all of the events which can trigger an ON, WAKE, OFF or SLEEP transition sequence. It also lists the associated status bits of the ‘ON Source’ and ‘OFF Source’ register bits which are asserted under each condition. |
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