WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 291

• Manufacturer Part Number: WM8351CGEB/RV
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

Production Data
Register B0h DCDC/LDO requested
REGISTER
DCDC Active
w
REGISTER
ADDRESS
ADDRESS
R177 (B1h)
options
13:12
BIT
BIT
15
3
2
2
1
0
DCDC_DISCLKS
DC4_ACTIVE
DC3_ACTIVE
DC3_ENA
DC2_ENA
DC1_ENA
PUTO[1:0]
LABEL
LABEL
DEFAULT
DEFAULT
0
0
0
00
0
1
1
Note: internal conditions may prevent the converter
from actually switching on - see DCDC/LDO Status
register for actual converter status.
Reset by state machine. Default held in metal mask.
DCDC3 converter enable
0 = disabled
1 = enabled
Note: internal conditions may prevent the converter
from actually switching on - see DCDC/LDO Status
register for actual converter status.
Reset by state machine. Default held in metal mask.
DCDC2 converter enable
0 = disabled
1 = enabled
Note: internal conditions may prevent the converter
from actually switching on - see DCDC/LDO Status
register for actual converter status.
Reset by state machine. Default held in metal mask.
DCDC1 converter enable
0 = disabled
1 = enabled
Note: internal conditions may prevent the converter
from actually switching on - see DCDC/LDO Status
register for actual converter status.
Reset by state machine. Default held in metal mask.
DCDC clock enable
0 = DCDC Clocks enabled
1 = DCDC1, 3 and 4 clocks disabled.
Note: This feature is useful in reducing the current
consumption if all 3 Step-Down DC-DCs are in LDO
mode. The requirement is to put them in LDO mode
and then at least 100us is required before clocks are
disabled. Again while coming out of LDO mode first
enable the clocks and then at least 100us wait and
then come out of LDO mode. This can only be used
if the processor is alive to set and unset this bit.
Reset by state machine.
Power up time out value for all converters
00 = 0.5ms
01 = 2ms
10 = 32ms
11 = 256ms
Reset by state machine.
DC-DC 4 Active mode
0 = Select Standby mode
1 = Select Active mode
Reset by state machine.
DC-DC 3 Active mode
0 = Select Standby mode
1 = Select Active mode
DESCRIPTION
DESCRIPTION
PD, April 2012, Rev 4.5
REFER TO
REFER TO
WM8351
291