WM8985
Pre-Production
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R52 (34h)
LOUT1
5:0
LOUT1VOL
111001
(0dB)
Left headphone output volume:
(1dB steps)
Volume
control
000000 = -57dB
...
111001 = 0dB
...
111111 = +6dB
Left headphone output mute:
0 = Normal operation
1 = Mute
6
7
LOUT1MUTE
LOUT1ZC
0
0
Headphone volume zero cross
enable:
1 = Change gain on zero cross only
0 = Change gain immediately
8
HPVU
Not latched LOUT1 and ROUT1 volumes do not
update until a 1 is written to HPVU
(in reg 52 or 53)
R53
5:0
ROUT1VOL
111001
(0dB)
Right headphone output volume:
(1dB steps)
ROUT1
Volume
control
000000 = -57dB
...
111001 = 0dB
...
111111 = +6dB
Right headphone output mute:
0 = Normal operation
1 = Mute
6
7
ROUT1MUTE
ROUT1ZC
0
0
Headphone volume zero cross
enable:
1 = Change gain on zero cross only
0 = Change gain immediately
8
HPVU
Not latched LOUT1 and ROUT1 volumes do not
update until a 1 is written to HPVU
(in reg 52 or 53)
Table 34 OUT1 Volume Control
PP, Rev 3.4, October 2006
66
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
