Production Data
WM8321
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
DC3_ON_VS
EL [1:0]
DC3_ON_VSEL[6:0] selects the DC-
DC3 output voltage from 0.85V to
3.4V in 25mV steps.
1:0
00
DC3_ON_VSEL[6:2] also exist in
ICE/OTP memory, controlling the
voltage in 100mV steps.
DC3_ON_VSEL[6:0] is coded as
follows:
00h = 0.85V
01h = 0.875V
…
65h = 3.375V
66h to 7Fh = 3.4V
Same as DC-DC1
R16483 (4063h)
DC3_SLP_S
LOT [2:0]
15:13
9:8
000
00
DC3 SLEEP
Control
DC3_SLP_M
ODE [1:0]
Same as DC-DC1
6:0
DC3_SLP_V
SEL [6:0]
000_0000
DC-DC3 SLEEP Voltage select
0.85V to 3.4V in 25mV steps
00h = 0.85V
01h = 0.875V
…
65h = 3.375V
66h to 7Fh = 3.4V
DC-DC4 Slave Mode select
0 = Disabled
R16484 (4064h)
DC4 Control 1
DC4_SLV
13
0
1 = Enabled
DC4_SLV = 1, then DC-DC4 is a
slave to DC-DC3, and both
converters are controlled by the DC-
DC3 registers.
This field can only be written to by
loading configuration settings from
OTP/ICE. In all other cases, this field
is Read Only.
DC4_PHASE
DC4_FLT
Same as DC-DC1
Same as DC-DC1
Same as DC-DC3
12
7
0
0
DC4_SOFT_
START [1:0]
5:4
01
DC4_STNBY
_LIM [1:0]
Same as DC-DC3
Same as DC-DC3
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
3:2
1:0
01
00
00
00
0
DC4_CAP
[1:0]
R16485 (4065h)
DC4 Control 2
DC4_ERR_A
CT [1:0]
15:14
12:11
10
DC4_HWC_
SRC [1:0]
DC4_HWC_
VSEL
DC4_HWC_
MODE [1:0]
9:8
11
DC4_OVP
Same as DC-DC3
Same as DC-DC1
7
0
R16486 (4066h)
DC4 ON Config
DC4_ON_SL
OT [2:0]
15:13
000
DC4_ON_M
ODE [1:0]
Same as DC-DC1
9:8
00
PD, February 2012, Rev 4.0
75
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
