wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 174

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

WM8400
w
R27 (1Bh)
RIN34 Input
PGA Volume
R28 (1Ch)
Left
Headphone
Output
Volume
R29 (1Dh)
Right
Headphone
Output
Volume
R30 (1Eh)
Line Output
Volume
REGISTER
ADDRESS
15:9
8
7
6
5
4:0
15:9
8
7
6:0
15:9
8
7
6:0
15:7
6
5
4
3
2
1
0
BIT
IPVU[3]
RI34MUTE
RI34ZC
RIN34VOL
[4:0]
OPVU[0]
LOZC
LOUTVOL
[6:0]
OPVU[1]
ROZC
ROUTVOL
[6:0]
LONMUTE
LOPMUTE
LOATTN
RONMUTE
ROPMUTE
ROATTN
LABEL
00h
N/A
1b
0b
0b
01011b
00h
N/A
0b
00h
(mute)
00h
N/A
0b
00h
(mute)
000h
1b
1b
0b
0b
1b
1b
0b
DEFAULT
Reserved - Do Not Change
Input PGA Volume Update
Writing a 1 to this bit will cause all input PGA volumes to be
updated simultaneously (LIN12, LIN34, RIN12 and RIN34)
RIN34 PGA Mute
0 = Disable Mute
1 = Enable Mute
RIN34 PGA Zero Cross Detector
0 = Change gain immediately
1 = Change gain on zero cross only
Reserved - Do Not Change
RIN34 Volume
(See Table 24 for PGA volume range)
Reserved - Do Not Change
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
Left Headphone Output Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
Left Headphone Output Volume
(See Table 53 for output PGA volume control range)
Reserved - Do Not Change
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
Right Headphone Output Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
Right Headphone Output Volume
(See Table 53 for output PGA volume control range)
Reserved - Do Not Change
LON Line Output Mute
0 = Un-mute
1 = Mute
LOP Line Output Mute
0 = Un-mute
1 = Mute
LOP Attenuation
0 = 0dB
1 = -6dB
Reserved - Do Not Change
RON Line Output Mute
0 = Un-mute
1 = Mute
ROP Line Output Mute
0 = Un-mute
1 = Mute
ROP Attenuation
0 = 0dB
1 = -6dB
DESCRIPTION
PP, April 2009, Rev 3.0
Pre-Production
174