wm9712l Wolfson Microelectronics plc, wm9712l Datasheet - Page 63

• Manufacturer Part Number: wm9712l
• Description: Ac?97 Audio And Touchpanel Codec
• Manufacturer: Wolfson Microelectronics plc

Production Data
w
00h
02h
04h
06h
ADDR
ADDR
ADDR
ADDR
REGISTER BITS BY ADDRESS
Register 00h is a read-only register. Writing any value to this register resets all registers to their default, but does not
change the contents of reg. 00h. Reading the register reveals information about the codec to the driver, as required by the
AC’97 Specification, Revision 2.2
Register 02h controls the output pins LOUT2 and ROUT2.
Register 04h controls the headphone output pins, HPOUTL and HPOUTR.
Register 06h controls the analogue output pin MONOOUT.
REG
REG
REG
REG
14:10
9:6
5
4
3
2
1
0
15
13:8
7
6
5:0
15
13:8
7
5:0
15
7
5:0
BIT
BIT
BIT
BIT
SE [4:0]
ID9:6
ID5
ID4
ID3
ID2
ID1
ID0
MU
LOUT2 VOL
ZC
INV
ROUT2 VOL
MU
HPOUTL VOL
ZC
HPOUTR VOL
MU
ZC
MONOOUT
VOL
LABEL
LABEL
LABEL
LABEL
11000
0101
1
1
0
1
0
0
DEFAULT
1 (mute)
000000 (0dB)
0 (OFF)
0 (not inverted)
000000 (0dB)
1 (mute)
000000 (0dB)
0 (OFF)
000000 (0dB)
1 (mute)
0 (OFF)
000000 (0dB)
DEFAULT
DEFAULT
DEFAULT
Indicates a codec from Wolfson Microelectronics
Indicates 18 bits resolution for ADCs and DACs
Indicates that the WM9712L supports bass boost
Indicates that the WM9712L has a headphone output
Indicates that the WM9712L does not support simulated stereo
Indicates that the WM9712L supports bass and treble control
Indicates that the WM9712L does not support modem functions
Indicates that the WM9712L does not have a dedicated microphone
ADC
Mutes HPOUTL and HPOUTR.
HPOUTL volume
Enables zero-cross detector
HPOUTR volume
Mutes MONOOUT.
Enables zero-cross detector
MONOOUT volume
Mutes LOUT2 and ROUT2.
LOUT2 volume
Enables zero-cross detector
Inverts LOUT2 (for BTL speaker operation)
ROUT2 volume
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PD Rev 4.5 August 2006
WM9712L
Intel’s AC’97
Component
Specification,
Revision 2.2,
page 50
Analogue
Audio Outputs
Analogue
Audio Outputs
Analogue
Audio Outputs
REFER TO
REFER TO
REFER TO
REFER TO
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