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WM8321 数据表(PDF) 72 Page - Wolfson Microelectronics plc

部件名 WM8321
功能描述  Processor Power Management Subsystem
PDF  253 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM8321 数据表(HTML) 72 Page - Wolfson Microelectronics plc

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WM8321
Production Data
w
PD, February 2012, Rev 4.0
72
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
1:0
DC1_ON_VS
EL [1:0]
00
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).
R16473 (4059h)
DC1 SLEEP
Control
15:13
DC1_SLP_S
LOT [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_M
ODE [1:0]
00
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
6:0
DC1_SLP_V
SEL [6:0]
000_0000
DC-DC1 SLEEP Voltage select
0.6V to 1.8V in 12.5mV steps
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).



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