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WM8311 Datasheet(PDF) 243 Page - Wolfson Microelectronics plc

Part # WM8311
Description  Processor Power Management Subsystem
PDF  302 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8311 Datasheet(HTML) 243 Page - Wolfson Microelectronics plc

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Pre-Production
WM8311
w
PP, May 2012, Rev 3.1
243
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
6:2
DC1_ON_VSE
L [6:2]
0_0000
DC-DC1 ON Voltage select
DC1_ON_VSEL [6:0] selects the DC-DC1 output
voltage from 0.6V to 1.8V in 12.5mV steps.
DC1_ON_VSEL [6:2] also exist in ICE/OTP memory,
controlling the voltage in 50mV steps.
DC1_ON_VSEL [6:0] is coded as follows:
00h to 08h = 0.6V
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).
1:0
DC1_ON_VSE
L [1:0]
00
DC-DC1 ON Voltage select
DC1_ON_VSEL [6:0] selects the DC-DC1 output
voltage from 0.6V to 1.8V in 12.5mV steps.
See DC1_ON_VSEL [6:2] for definition.
Register 4058h DC1 ON Config
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16473
(4059h) DC1
SLEEP
Control
15:13
DC1_SLP_SLO
T [2:0]
000
DC-DC1 SLEEP Slot select
000 = SLEEP voltage / operating mode transition in
Timeslot 5
001 = Disable in Timeslot 5
010 = Disable in Timeslot 4
011 = Disable in Timeslot 3
100 = Disable in Timeslot 2
101 = Disable in Timeslot 1
110 = SLEEP voltage / operating mode transition in
Timeslot 3
111 = SLEEP voltage / operating mode transition in
Timeslot 1
If DC-DC1 is assigned to a Hardware Enable Input,
then codes 001-101 select in which timeslot the
converter enters its SLEEP condition.
9:8
DC1_SLP_MO
DE [1:0]
11
DC-DC1 SLEEP Operating Mode
00 = Forced Continuous Conduction Mode
01 = Auto Mode (Continuous / Discontinuous
Conduction with Pulse-Skipping)
10 = LDO Mode
11 = Hysteretic Mode



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