WM8321 Datasheet, PDF (76/253 Pages) Wolfson Microelectronics plc – Processor Power Management Subsystem

WM8321
ADDRESS
R16487 (4067h)
DC4 SLEEP
Control
BIT
6:2
1:0
15:13
9:8
6:0
LABEL
DC4_ON_VS
EL [6:2]
DC4_ON_VS
EL [1:0]
DC4_SLP_S
LOT [2:0]
DC4_SLP_M
ODE [1:0]
DC4_SLP_V
SEL [6:0]
Table 33 DC-DC Converter Control
DEFAULT
00000
00
000
00
000_0000
Production Data
DESCRIPTION
Same as DC-DC3
Same as DC-DC3
Same as DC-DC1
Same as DC-DC1
Same as DC-DC3
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
15:14
LABEL
LDO1_ERR_
ACT [1:0]
12:11 LDO1_HWC
_SRC [1:0]
10 LDO1_HWC
_VSEL
9:8 LDO1_HWC
_MODE
7
LDO1_FLT
6
LDO1_SWI
DEFAULT
00
00
0
10
0
0
DESCRIPTION
LDO1 Error Action (Undervoltage)
00 = Ignore
01 = Shut down regulator
10 = Shut down system (Device
Reset)
11 = Reserved
Note that an Interrupt is always
raised.
LDO1 Hardware Control Source
00 = Disabled
01 = Hardware Control 1
10 = Hardware Control 2
11 = Hardware Control 1 or 2
LDO1 Hardware Control Voltage
select
0 = Set by LDO1_ON_VSEL
1 = Set by LDO1_SLP_VSEL
LDO1 Hardware Control Operating
Mode
00 = Low Power mode
01 = Turn converter off
10 = Low Power mode
11 = Set by LDO1_ON_MODE
LDO1 Output float
0 = LDO1 output discharged when
disabled
1 = LDO1 output floating when
disabled
LDO1 Switch Mode
0 = LDO mode
1 = Switch mode
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PD, February 2012, Rev 4.0
76