wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 160

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

WM8400
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REGISTER BITS BY ADDRESS
R0 (00h)
Reset / ID
R1 (01h)
ID
R2 (02h)
Power
Management
(1)
REGISTER
ADDRESS
15:0
15
14:12
11:0
15
14
13
12
11
10
9
8
7:5
4
3
2:1
0
BIT
SW_RESET_CHIP_
ID
[15:0]
(rr)
CHIP_REV [2:0]
(rr)
CODEC_ENA
(rw)
SYSCLK_ENA
(rw)
SPK_MIX_ENA
(rw)
SPK_ENA
(rw)
OUT3_ENA
(rw)
OUT4_ENA
(rw)
LOUT_ENA
(rw)
ROUT_ENA
(rw)
MIC1BIAS_ENA
(rw)
VMID_MODE
[1:0]
(rw)
VREF_ENA
(rw)
LABEL
6172h
0b
000b
000h
0b
0b
0b
0b
0b
0b
0b
0b
000b
0b
0b
00b
0b
DEFAULT
Writing to this register resets all registers to their default state.
Reading from this register will indicate Device ID 6172h.
Reserved - Do Not Change
Reading from this register will indicate the Revision ID.
Reserved - Do Not Change
Master CODEC enable bit.
0 = CODEC registers held in reset
1 = CODEC registers operate normally
SYSCLK enable
0 = disabled
1 = enabled
Speaker Mixer Enable
0 = disabled
1 = enabled
Speaker Output Enable
0 = disabled
1 = enabled
OUT3 and OUT3MIX Enable
0 = disabled
1 = enabled
OUT4 and OUT4MIX Enable
0 = disabled
1 = enabled
LOUT (Left Headphone Output) Enable
0 = disabled
1 = enabled
ROUT (Right Headphone Output) Enable
0 = disabled
1 = enabled
Reserved - Do Not Change
MICBIAS Enable
0 = OFF (high impedance output)
1 = ON
Reserved - Do Not Change
Vmid Divider Enable and Select
00 = Vmid disabled (for OFF mode)
01 = 2 x 50kΩ divider (Normal mode)
10 = 2 x 300kΩ divider (Standby mode)
11 = 2 x 6.8kΩ divider (for fast start-up)
VREF Enable (Bias for all analogue functions)
0 = VREF bias disabled
1 = VREF bias enabled
DESCRIPTION
PP, April 2009, Rev 3.0
Pre-Production
160