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WM8321 데이터시트(PDF) 165 Page - Wolfson Microelectronics plc

부품명 WM8321
상세설명  Processor Power Management Subsystem
PDF  253 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8321 데이터시트(HTML) 165 Page - Wolfson Microelectronics plc

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Production Data
WM8321
w
PD, February 2012, Rev 4.0
165
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16422
(4026h)
RTC Trim
9:0
RTC_TRIM
[9:0]
00_0000_0
000
RTC frequency trim. Value is a 10bit fixed point <4,6>
2's complement number. MSB Scaling = -8Hz.
The register indicates the error (in Hz) with respect to
the ideal 32768Hz) of the input crystal frequency.
Protected by security key.
Register 4026h
RTC Trim
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16429
(402Dh)
AuxADC
Data
15:12
AUX_DATA_S
RC [3:0]
0000
AUXADC Data Source
1 = GPIO10
2 = GPIO11
3 = GPIO12
5 = Chip Temperature
7 = PVDD voltage
All other values are Reserved
11:0
AUX_DATA
[11:0]
0000_0000
_0000
AUXADC Measurement Data
Voltage (mV) = AUX_DATA x 1.465
ChipTemp (°C) = (498 - AUX_DATA) / 1.09
Register 402Dh
AuxADC Data
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16430
(402Eh)
AuxADC
Control
15
AUX_ENA
0
AUXADC Enable
0 = Disabled
1 = Enabled
Note - this bit is reset to 0 when the OFF power state is
entered.
14
AUX_CVT_EN
A
0
AUXADC Conversion Enable
0 = Disabled
1 = Enabled
In automatic mode, conversions are enabled by setting
this bit.
In manual mode (AUX_RATE = 0), setting this bit will
initiate a conversion; the bit is reset automatically after
each conversion.
12
AUX_SLPENA
0
AUXADC SLEEP Enable
0 = Disabled
1 = Controlled by AUX_ENA
5:0
AUX_RATE
[5:0]
00_0000
AUXADC Conversion Rate
0 = Manual
1 = 2 samples/s
2 = 4 samples/s
3 = 6 samples/s
…
31 = 62 samples/s
32 = Reserved
33 = 16 samples/s
34 = 32 samples/s
35 = 48 samples/s
…
63 = 496 samples/s
Register 402Eh
AuxADC Control



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