Production Data
WM8321
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
DC2_HWC_SR
C [1:0]
DC-DC2 Hardware Control Source
00 = Disabled
12:11
00
01 = Hardware Control 1
10 = Hardware Control 2
11 = Hardware Control 1 or 2
DC-DC2 Hardware Control Voltage select
0 = Set by DC2_ON_VSEL
1 = Set by DC2_SLP_VSEL
DC-DC2 Hardware Control Operating Mode
00 = Forced Continuous Conduction Mode
01 = Disabled
DC2_HWC_VS
EL
10
0
DC2_HWC_M
ODE [1:0]
9:8
11
10 = LDO Mode
11 = Hysteretic Mode
DC-DC2 High Current threshold
000 = 125mA
DC2_HC_THR
[2:0]
6:4
000
001 = 250mA
010 = 375mA
011 = 500mA
100 = 625mA
101 = 750mA
110 = 875mA
111 = 1000mA
DC2_HC_IND_
ENA
DC-DC2 High Current detect enable
0 = Disabled
0
0
1 = Enabled
Register 405Ch DC2 Control 2
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16477
(405Dh)
DC2 ON
Config
DC2_ON_SLO
T [2:0]
DC-DC2 ON Slot select
15:13
000
000 = Do not enable
001 = Enable in Timeslot 1
010 = Enable in Timeslot 2
011 = Enable in Timeslot 3
100 = Enable in Timeslot 4
101 = Enable in Timeslot 5
110 = Controlled by Hardware Enable 1
111 = Controlled by Hardware Enable 2
DC-DC2 ON Operating Mode
00 = Forced Continuous Conduction Mode
DC2_ON_MOD
E [1:0]
9:8
6:2
01
01 = Auto Mode (Continuous / Discontinuous
Conduction with Pulse-Skipping)
10 = LDO Mode
11 = Hysteretic Mode
DC-DC2 ON Voltage select
DC2_ON_VSE
L [6:2]
0_0000
DC2_ON_VSEL [6:0] selects the DC-DC2 output
voltage from 0.6V to 1.8V in 12.5mV steps.
DC2_ON_VSEL [6:2] also exist in ICE/OTP memory,
controlling the voltage in 50mV steps.
DC2_ON_VSEL [6:0] is coded as follows:
00h to 08h = 0.6V
PD, February 2012, Rev 4.0
193
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
