wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 185
wm8400
Manufacturer Part Number
wm8400
Description
Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8400.pdf
(208 pages)
- Current page: 185 of 208
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Pre-Production
R66 (42h)
LDO2 Control
R67 (43h)
LDO3 Control
REGISTER
ADDRESS
9:5
4:0
15
14
13:12
11
10
9:5
4:0
15
14
13:12
11
10
9:5
4:0
BIT
LDO1_VIMG [4:0]
LDO1_VSEL [4:0]
LDO2_ENA
LDO2_SWI
LDO2_ERRACT
LDO2_HIB_MODE
LDO2_VIMG [4:0]
LDO2_VSEL [4:0]
LDO3_ENA
LDO3_SWI
LDO3_ERRACT
LDO3_HIB_MODE
LDO3_VIMG [4:0]
LDO3_VSEL [4:0]
LABEL
00000b
00000b
0b
0b
00b
0b
0b
00000b
00000b
0b
0b
00b
0b
0b
00000b
00000b
DEFAULT
LDO1 Hibernate Mode output voltage
0.9v to 1.6v in 0.05v steps,
1.7 to 3.3v in 0.10v steps
See Table 87 for details.
LDO1 voltage select
0.9v to 1.6v in 0.05v steps,
1.7 to 3.3v in 0.10v steps
See Table 87 for details
LDO2 Software enable
0 = Disabled
1 = Enabled
LDO2 Software enable
0 = LDO Regulator
1 = Current Limited switch
Reserved - Do Not Change
LDO2 Undervoltage Error Action
0 = Generate IRQ only
1 = Generate IRQ, Assert NRST, De-assert PWRGOOD,
Shutdown device
LDO2 Hibernate Mode
0 = LDO2 disabled in Hibernate
1 = LDO2 enabled in Hibernate
LDO2 Hibernate Mode output voltage
0.9v to 1.6v in 0.05v steps,
1.7 to 3.3v in 0.10v steps
See Table 87 for details.
LDO2 voltage select
0.9v to 1.6v in 0.05v steps,
1.7 to 3.3v in 0.10v steps
See Table 87 for details
LDO3 Software enable
0 = Disabled
1 = Enabled
LDO3 Software enable
0 = LDO Regulator
1 = Current Limited switch
Reserved - Do Not Change
LDO3 Undervoltage Error Action
0 = Generate IRQ only
1 = Generate IRQ, Assert NRST, De-assert PWRGOOD,
Shutdown device
LDO3 Hibernate Mode
0 = LDO3 disabled in Hibernate
1 = LDO3 enabled in Hibernate
LDO3 Hibernate Mode output voltage
0.9v to 1.6v in 0.05v steps,
1.7 to 3.3v in 0.10v steps
See Table 87 for details.
LDO3 voltage select
0.9v to 1.6v in 0.05v steps,
1.7 to 3.3v in 0.10v steps
See Table 87 for details
DESCRIPTION
PP, April 2009, Rev 3.0
WM8400
185
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