wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 188

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

WM8400
w
R73 (49h)
DCDC2
Control 2
R74 (4Ah)
Reserved
R75 (4Bh)
Interface
R76 (4Ch)
PM General
REGISTER
ADDRESS
6:0
15:14
13
12:10
9:8
7
6:0
15:0
15:4
3
2
1
0
15
14
13
12:4
BIT
DC2_VSEL [6:0]
DC1_CAP
DC2_FRC_PWM
DC2_STBY_LIM
[1:0]
DC2_ACT_LIM
DC2_VIMG [6:0]
AUTOINC
ARA_ENA
SPI_CFG
CODEC_SOFTST
CODEC_SOFTSD
CHIP_SOFTSD
LABEL
0000000b
0b
000b
00b
0b
0000000b
0000h
000h
1b
0b
0b
0b
0b
0b
0b
000h
DEFAULT
01
DC2 voltage select
0.85v to 4.025v in 0.025v steps
See Table 88 for details
DC-DC2 Output Capacitor
00 = Reserved
01 = 10µF
10 = 22µF
11 = 47µF
DC2 Force PWM operation
0 = Not selected
1 = PWM operation forced
Reserved - Do Not Change
DC2 Standby Mode current limit
If DC2_ACT_LIM = 0:
00 = 70mA
01 = 150mA
10 = 300mA
11 = 600mA
If DC2_ACT_LIM = 1:
00 = 110mA
01 = 220mA
10 = 450mA
11 = 900mA
DC2 Active Mode current limit
0 = 600mA
1 = 1000mA
DC2 Hibernate Mode output voltage
0.85v to 4.025v in 0.025v steps
See Table 88 for details
Reserved - Do Not Change
Reserved - Do Not Change
Enable Auto-Increment function (2-wire I2C mode)
0 = Disabled
1 = Enabled
Enable Alert Response Address function (2-wire I2C mode)
0 = Disabled
1 = Enabled
3-wire Read mode configuration
0 = CMOS output
1 = Open-drain
Reserved - Do Not Change
CODEC Soft Start Sequence
0 = Disabled
1 = Enabled
CODEC Soft Shutdown Sequence
0 = Disabled
1 = Enabled
Chip Soft Shutdown Sequence
0 = Disabled
1 = Enabled
Reserved - Do Not Change
DESCRIPTION
PP, April 2009, Rev 3.0
Pre-Production
188