WM8321
Production Data
REFER TO
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
LDO4 SLEEP Voltage select
LDO4_SLP_VS
EL [4:0]
4:0
0_0000
0.9V to 1.6V in 50mV steps
1.7V to 3.3V in 100mV steps
00h = 0.90V
01h = 0.95V
…
0Eh = 1.60V
0Fh = 1.70V
…
1Eh = 3.20V
1Fh = 3.30V
Register 4073h LDO4 SLEEP Control
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16500
(4074h)
LDO5
LDO5_ERR_A
CT [1:0]
LDO5 Error Action (Undervoltage)
00 = Ignore
15:14
00
01 = Shut down regulator
Control
10 = Shut down system (Device Reset)
11 = Reserved
Note that an Interrupt is always raised.
LDO5 Hardware Control Source
00 = Disabled
LDO5_HWC_S
RC [1:0]
12:11
00
01 = Hardware Control 1
10 = Hardware Control 2
11 = Hardware Control 1 or 2
LDO5 Hardware Control Voltage select
0 = Set by LDO5_ON_VSEL
1 = Set by LDO5_SLP_VSEL
LDO5 Hardware Control Operating Mode
00 = Low Power mode
LDO5_HWC_V
SEL
10
0
LDO5_HWC_M
ODE [1:0]
9:8
10
01 = Turn converter off
10 = Low Power mode
11 = Set by LDO5_ON_MODE
LDO5 Output float
LDO5_FLT
LDO5_SWI
7
6
0
0
0
0
0 = LDO5 output discharged when disabled
1 = LDO5 output floating when disabled
LDO5 Switch Mode
0 = LDO mode
1 = Switch mode
LDO5_LP_MO
DE
LDO5 Low Power Mode Select
0 = 50mA (reduced quiescent current)
1 = 20mA (minimum quiescent current)
Selects which Low Power mode is used in ON, SLEEP,
or under HWC modes.
Register 4074h LDO5 Control
PD, February 2012, Rev 4.0
208
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
