WM8959
Pre-Production
REGISTER
ADDRESS
BIT
LABEL
RI34MUTE
DEFAULT
DESCRIPTION
7
6
5
1b
RIN34 PGA Mute
0 = Disable Mute
1 = Enable Mute
RI34ZC
0b
RIN34 PGA Zero Cross Detector
0 = Change gain immediately
1 = Change gain on zero cross only
Reserved - Do Not Change
RIN34 Volume
0b
4:0
RIN34VOL
[4:0]
01011b
(See Table 6 for PGA volume range)
Reserved - Do Not Change
Output PGA Volume Update
R28 (1Ch)
15:9
8
00h
N/A
Left
OPVU[0]
LOZC
Headphone
Output
Volume
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
7
0b
Left Headphone Output Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
6:0
LOUTVOL
[6:0]
00h
Left Headphone Output Volume
(See Table 28 for output PGA volume control range)
Reserved - Do Not Change
(mute)
00h
R29 (1Dh)
15:9
8
Right
Headphone
Output
OPVU[1]
ROZC
N/A
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
Volume
7
0b
Right Headphone Output Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
Right Headphone Output Volume
(See Table 28 for output PGA volume control range)
Reserved - Do Not Change
LON Line Output Mute
0 = Un-mute
6:0
ROUTVOL
[6:0]
00h
(mute)
000h
1b
R30 (1Eh)
15:7
6
Line Output
Volume
LONMUTE
LOPMUTE
LOATTN
1 = Mute
5
4
1b
0b
LOP Line Output Mute
0 = Un-mute
1 = Mute
LOP Attenuation
0 = 0dB
1 = -6dB
3
2
0b
1b
Reserved - Do Not Change
RON Line Output Mute
0 = Un-mute
RONMUTE
ROPMUTE
ROATTN
1 = Mute
1
0
1b
0b
ROP Line Output Mute
0 = Un-mute
1 = Mute
ROP Attenuation
0 = 0dB
1 = -6dB
R31 (1Fh)
15:6
5
00000000
00b
Reserved - Do Not Change
OUT3 and
OUT4 Volume
OUT3MUTE
1b
OUT3 Mute
0 = Un-mute
1 = Mute
PP, May 2008, Rev 3.1
138
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
