WM8321
Production Data
REFER TO
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
LDO8 SLEEP Voltage select
LDO8_SLP_VS
EL [4:0]
4:0
0_0000
1.0V to 1.6V in 50mV steps
1.7V to 3.5V in 100mV steps
00h = 1.00V
01h = 1.05V
02h = 1.10V
…
0Ch = 1.60V
0Dh = 1.70V
…
1Eh = 3.40V
1Fh = 3.50V
Register 407Fh LDO8 SLEEP Control
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16512
(4080h)
LDO9
LDO9_ERR_A
CT [1:0]
LDO9 Error Action (Undervoltage)
00 = Ignore
15:14
00
01 = Shut down regulator
10 = Shut down system (Device Reset)
11 = Reserved
Control
Note that an Interrupt is always raised.
LDO9 Hardware Control Source
00 = Disabled
LDO9_HWC_S
RC [1:0]
12:11
00
01 = Hardware Control 1
10 = Hardware Control 2
11 = Hardware Control 1 or 2
LDO9 Hardware Control Voltage select
0 = Set by LDO9_ON_VSEL
1 = Set by LDO9_SLP_VSEL
LDO9 Hardware Control Operating Mode
00 = Low Power mode
LDO9_HWC_V
SEL
10
0
LDO9_HWC_M
ODE [1:0]
9:8
10
01 = Turn converter off
10 = Low Power mode
11 = Set by LDO9_ON_MODE
LDO9 Output float
LDO9_FLT
LDO9_SWI
7
6
0
0
0 = LDO9 output discharged when disabled
1 = LDO9 output floating when disabled
LDO9 Switch Mode
0 = LDO mode
1 = Switch mode
Register 4080h LDO9 Control
PD, February 2012, Rev 4.0
216
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
