WM8321
Production Data
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
Same as DC-DC3
DC4_ON_VS
EL [6:2]
6:2
00000
DC4_ON_VS
EL [1:0]
Same as DC-DC3
Same as DC-DC1
Same as DC-DC1
Same as DC-DC3
1:0
15:13
9:8
00
000
R16487 (4067h)
DC4_SLP_S
LOT [2:0]
DC4 SLEEP
Control
DC4_SLP_M
ODE [1:0]
00
DC4_SLP_V
SEL [6:0]
6:0
000_0000
Table 33 DC-DC Converter Control
15.11.3 LDO REGULATOR CONTROL
The register controls for configuring the LDO Regulators 1-6 are defined in Table 34.
Note that the LDOn_ON_SLOT and LDOn_ON_VSEL fields may also be stored in the integrated OTP
memory. See Section 14 for details.
ADDRESS
R16488 (4068h)
LDO1 Control
BIT
LABEL
DEFAULT
DESCRIPTION
LDO1 Error Action (Undervoltage)
00 = Ignore
LDO1_ERR_
ACT [1:0]
15:14
00
01 = Shut down regulator
10 = Shut down system (Device
Reset)
11 = Reserved
Note that an Interrupt is always
raised.
LDO1_HWC
_SRC [1:0]
LDO1 Hardware Control Source
00 = Disabled
12:11
00
01 = Hardware Control 1
10 = Hardware Control 2
11 = Hardware Control 1 or 2
LDO1_HWC
_VSEL
LDO1 Hardware Control Voltage
select
10
0
0 = Set by LDO1_ON_VSEL
1 = Set by LDO1_SLP_VSEL
LDO1_HWC
_MODE
LDO1 Hardware Control Operating
Mode
9:8
10
00 = Low Power mode
01 = Turn converter off
10 = Low Power mode
11 = Set by LDO1_ON_MODE
LDO1 Output float
LDO1_FLT
LDO1_SWI
7
6
0
0
0 = LDO1 output discharged when
disabled
1 = LDO1 output floating when
disabled
LDO1 Switch Mode
0 = LDO mode
1 = Switch mode
PD, February 2012, Rev 4.0
76
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
