Production Data
WM8321
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16422
(4026h)
RTC Trim
RTC_TRIM
[9:0]
RTC frequency trim. Value is a 10bit fixed point <4,6>
2's complement number. MSB Scaling = -8Hz.
9:0
00_0000_0
000
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
AUX_DATA_S
RC [3:0]
AUXADC Data Source
1 = GPIO10
15:12
0000
2 = GPIO11
3 = GPIO12
5 = Chip Temperature
7 = PVDD voltage
All other values are Reserved
AUXADC Measurement Data
Voltage (mV) = AUX_DATA x 1.465
ChipTemp (°C) = (498 - AUX_DATA) / 1.09
AUX_DATA
[11:0]
11:0
0000_0000
_0000
Register 402Dh AuxADC Data
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16430
(402Eh)
AuxADC
Control
AUX_ENA
AUXADC Enable
15
0
0 = Disabled
1 = Enabled
Note - this bit is reset to 0 when the OFF power state is
entered.
AUX_CVT_EN
A
AUXADC Conversion Enable
14
0
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.
AUX_SLPENA
AUXADC SLEEP Enable
0 = Disabled
12
0
1 = Controlled by AUX_ENA
AUX_RATE
[5:0]
AUXADC Conversion Rate
0 = Manual
5:0
00_0000
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
PD, February 2012, Rev 4.0
165
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
