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WM8321GEFL/RV 参数 Datasheet PDF下载

WM8321GEFL/RV图片预览
型号: WM8321GEFL/RV
PDF下载: 下载PDF文件 查看货源
内容描述: 处理器电源管理子系统 [Processor Power Management Subsystem]
分类和应用:
文件页数/大小: 253 页 / 1578 K
品牌: WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
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Production Data  
WM8321  
The ON Source and OFF Source register fields are defined in Table 2.  
ADDRESS  
BIT  
LABEL  
CHIP_ON  
DEFAULT  
DESCRIPTION  
R16387  
(4003h)  
Indicates whether the system is  
ON or OFF.  
15  
0
Power State  
0 = OFF  
1 = ON (or SLEEP)  
OFF can be commanded by  
writing CHIP_ON = 0.  
Note that writing CHIP_ON = 1 is  
not a valid ‘ON’ event, and will not  
trigger an ON transition.  
CHIP_SLP  
Indicates whether the system is in  
the SLEEP state.  
14  
0
0 = Not in SLEEP  
1 = SLEEP  
WAKE can be commanded by  
writing CHIP_SLP = 0.  
SLEEP can be commanded by  
writing CHIP_SLP = 1.  
PWRSTATE_DLY  
Power State transition delay  
00 = No delay  
11:10  
10  
01 = No delay  
10 = 1ms  
11 = 10ms  
R16398  
(400Eh)  
ON_TRANS  
ON_GPIO  
Most recent ON/WAKE event type  
0 = WAKE transition  
15  
11  
10  
0
0
0
ON Source  
1 = ON transition  
Most recent ON/WAKE event type  
0 = Not caused by GPIO input  
1 = Caused by GPIO input  
Most recent WAKE event type  
0 = Not caused by PVDD  
ON_SYSLO  
1 = Caused by SYSLO threshold.  
Note that the SYSLO threshold  
cannot trigger an ON event.  
7
6
ON_WDOG_TO  
ON_SW_REQ  
0
0
Most recent WAKE event type  
0 = Not caused by Watchdog timer  
1 = Caused by Watchdog timer  
Most recent WAKE event type  
0 = Not caused by software WAKE  
1 = Caused by software WAKE  
command (CHIP_SLP = 0)  
ON_RTC_ALM  
ON_ON_PIN  
Most recent ON/WAKE event type  
0 = Not caused by RTC Alarm  
1 = Caused by RTC Alarm  
5
4
3
0
0
0
Most recent ON/WAKE event type  
0 = Not caused by the ON pin  
1 = Caused by the ON pin  
RESET_CNV_UV  
Most recent ON event type  
0 = Not caused by undervoltage  
1 = Caused by a Device Reset due  
to a Converter (LDO or DC-DC)  
undervoltage condition  
RESET_SW  
Most recent ON event type  
2
0
0 = Not caused by Software Reset  
1 = Caused by Software Reset  
PD, February 2012, Rev 4.0  
33  
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