WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 128
![no-image](/images/no-image-200.jpg)
WM8351CGEB/RV
Manufacturer Part Number
WM8351CGEB/RV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8351CGEBRV.pdf
(330 pages)
- Current page: 128 of 330
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Note that, when a GPIO pin is configured as a Hibernate input pin, and this input is asserted, then all
DC-DC Converters will be placed in Hibernate mode.
In order to use GPIO pins as L_PWR pins, they must be configured by setting the respective
GPn_FN, and GPn_DIR bits to the appropriate value (see Section 20).
R182 (B6h) for
DC-DC1
R188 (BCh) for
DC-DC3
R191 (BFh) for
DC-DC4
Note: n is either 1, 3 or 4 and identifies the individual DC-DC converter
Table 73 Low-Power Mode Control for DC-DC Converters 1, 3 and 4
DC-DC Converters 1, 3 and 4 can also be controlled by the device HIBERNATE bit, or by hardware
input signals L_PWR1, L_PWR2 and L_PWR3. Several GPIO pins can be assigned as L_PWR pins.
Each converter can be assigned to one of these three signals, or else to the device HIBERNATE bit.
The signals are active high and each converter’s response to the selected signal is programmable as
defined in Table 73.
ADDRESS
14:12
BIT
9:8
DCn_HIB_M
ODE [2:0]
DCn_HIB_T
RIG [1:0]
LABEL
DEFAULT
001
00
DC-DCn Hibernate behaviour:
000 = Use current settings (no change)
001 = Select voltage image settings
010 = Force standby mode
011 = Force standby mode and voltage
100 = Force LDO mode
101 = Force LDO mode and voltage
110 = Reserved
111 = Disable output
DC-DCn Hibernate signal select
00 = HIBERNATE register bit
01 = L_PWR1
10 = L_PWR2
11 = L_PWR3
Note that Hibernate is also selected
when a GPIO Hibernate input is
asserted.
image settings
image settings
DESCRIPTION
PD, April 2012, Rev 4.5
Production Data
128
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