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WM8326 Datasheet(PDF) 197 Page - Wolfson Microelectronics plc

Part # WM8326
Description  Processor Power Management Subsystem
PDF  255 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8326 Datasheet(HTML) 197 Page - Wolfson Microelectronics plc

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Production Data
WM8326
w
PD, June 2012, Rev 4.0
197
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
68h to 7Fh = 1.8V
Note - Maximum output voltage selection in 4MHz
switching mode is 48h (1.4V).
Register 405Fh DC2 DVS Control
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16480
(4060h) DC3
Control 1
12
DC3_PHASE
0
DC-DC3 Clock Phase Control
0 = Normal
1 = Inverted
7
DC3_FLT
0
DC-DC3 Output float
0 = DC-DC3 output discharged when disabled
1 = DC-DC3 output floating when disabled
5:4
DC3_SOFT_ST
ART [1:0]
01
DC-DC3 Soft-Start Control
(Duration in each of the 3 intermediate startup current
limiting steps.)
00 = Immediate start-up
01 = 512us steps
10 = 4.096ms steps
11 = 32.768ms steps
3:2
DC3_STNBY_L
IM [1:0]
01
DC-DC3 Current Limit
Sets the maximum DC output current in Hysteretic
Mode.
00 = 50mA
01 = 100mA
10 = 200mA
11 = 400mA
Protected by security key.
1:0
DC3_CAP [1:0]
00
DC-DC3 Output Capacitor
00 = 10uF to 20uF
01 = 10uF to 20uF
10 = 22uF to 45uF
11 = 47uF to 100uF
This field can only be written to by loading configuration
settings from OTP/ICE. In all other cases, this field is
Read Only.
Register 4060h DC3 Control 1
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16481
(4061h) DC3
Control 2
15:14
DC3_ERR_AC
T [1:0]
00
DC-DC3 Error Action (Undervoltage)
00 = Ignore
01 = Shut down converter
10 = Shut down system (Device Reset)
11 = Reserved
Note that an Interrupt is always raised.
12:11
DC3_HWC_SR
C [1:0]
00
DC-DC3 Hardware Control Source
00 = Disabled
01 = Hardware Control 1
10 = Hardware Control 2
11 = Hardware Control 1 or 2



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