Production Data
WM8321
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R16474 (405Ah)
DC1_DVS_S
RC [1:0]
DC-DC1 DVS Control Source
00 = Disabled
12:11
00
DC1 DVS
Control
01 = Enabled
10 = Controlled by Hardware DVS1
11 = Controlled by Hardware DVS2
DC-DC1 DVS Voltage select
0.6V to 1.8V in 12.5mV steps
00h to 08h = 0.6V
DC1_DVS_V
SEL [6:0]
6:0
000_0000
09h = 0.6125V
…
48h = 1.4V (see note)
…
67h = 1.7875V
68h to 7Fh = 1.8V
Note - Maximum output voltage
selection in 4MHz switching mode is
48h (1.4V).
R16475 (405Bh)
DC2 Control 1
DC2_RATE
[1:0]
Same as DC-DC1
15:14
10
DC2_PHASE
Same as DC-DC1
Same as DC-DC1
12
0
DC2_FREQ
[1:0]
9:8
00
DC2_FLT
Same as DC-DC1
Same as DC-DC1
7
0
DC2_SOFT_
START [1:0]
5:4
00
1:0
15:14
12:11
10
DC2_CAP
[1:0]
00
00
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
R16476 (405Ch)
DC2 Control 2
DC2_ERR_A
CT [1:0]
DC2_HWC_
SRC [1:0]
00
DC2_HWC_
VSEL
0
DC2_HWC_
MODE [1:0]
9:8
11
DC2_HC_TH
R [2:0]
6:4
000
0
0
DC2_HC_IN
D_ENA
R16477 (405Dh)
DC2 ON Config
DC2_ON_SL
OT [2:0]
15:13
9:8
000
00
DC2_ON_M
ODE [1:0]
6:2
DC2_ON_VS
EL [6:2]
00000
00
DC2_ON_VS
EL [1:0]
1:0
R16478 (405Eh)
DC2_SLP_S
LOT [2:0]
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
Same as DC-DC1
15:13
9:8
000
00
DC2 SLEEP
Control
DC2_SLP_M
ODE [1:0]
DC2_SLP_V
SEL [6:0]
6:0
000_0000
00
R16479 (405Fh)
DC2_DVS_S
RC [1:0]
12:11
PD, February 2012, Rev 4.0
73
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
