Production Data
WM8321
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
66h to 7Fh = 3.4V
DC3_ON_VSE
L [1:0]
DC-DC3 ON Voltage select
1:0
00
DC3_ON_VSEL [6:0] selects the DC-DC3 output
voltage from 0.85V to 3.4V in 25mV steps.
See DC3_ON_VSEL [6:2] for definition.
Register 4062h DC3 ON Config
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16483
(4063h) DC3
SLEEP
DC3_SLP_SLO
T [2:0]
DC-DC3 SLEEP Slot select
15:13
000
000 = SLEEP voltage / operating mode transition in
Timeslot 5
Control
001 = Disable in Timeslot 5
010 = Disable in Timeslot 4
011 = Disable in Timeslot 3
100 = Disable in Timeslot 2
101 = Disable in Timeslot 1
110 = SLEEP voltage / operating mode transition in
Timeslot 3
111 = SLEEP voltage / operating mode transition in
Timeslot 1
If DC-DC3 is assigned to a Hardware Enable Input,
then codes 001-101 select in which timeslot the
converter enters its SLEEP condition.
DC3_SLP_MO
DE [1:0]
DC-DC3 SLEEP Operating Mode
9:8
6:0
11
00 = Forced Continuous Conduction Mode
01 = Auto Mode (Continuous / Discontinuous
Conduction with Pulse-Skipping)
10 = LDO Mode
11 = Hysteretic Mode
DC3_SLP_VSE
L [6:0]
DC-DC3 SLEEP Voltage select
0.85V to 3.4V in 25mV steps
000_0000
00h = 0.85V
01h = 0.875V
…
65h = 3.375V
66h to 7Fh = 3.4V
Register 4063h DC3 SLEEP Control
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16484
(4064h) DC4
Control 1
DC4_SLV
DC-DC4 Slave Mode select
0 = Disabled
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.
PD, February 2012, Rev 4.0
197
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
