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WM8321 数据表(PDF) 34 Page - Wolfson Microelectronics plc

部件名 WM8321
功能描述  Processor Power Management Subsystem
PDF  253 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM8321 数据表(HTML) 34 Page - Wolfson Microelectronics plc

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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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