wm9714l Wolfson Microelectronics plc, wm9714l Datasheet - Page 93

• Manufacturer Part Number: wm9714l
• Description: Ac?97 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

24h
26h
Pre-Production
Register 24h controls the output volume mapping on headphone jack insertion.
Register 26h is for power management according to the AC’97 specification. Note that the actual state of many circuit
blocks depends on both register 26h AND registers 3Ch and 3Eh.
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REGISTER
REGISTER
ADDRESS
ADDRESS
4
3:2
1:0
14
13
12
11
10
9
8
3
2
1
0
BIT
BIT
JIEN
DCDRVSEL
EARSPK
SEL
PR6
PR5
PR4
PR3
PR2
PR1
PR0
REF
ANL
DAC
ADC
LABEL
LABEL
0 (disabled)
00 (AC)
00 (none)
1 (OFF)
1 (OFF)
1 (OFF)
1 (OFF)
1 (OFF)
1 (OFF)
1 (OFF)
0
0
0
0
DEFAULT
DEFAULT
Jack Insert Control
0 = Disable jack insert circuitry
1 = Enable jack insert circuitry
Jack Insert Headphone DC Reference Control
00 = AC coupled headphones, no DC source
01 = OUT3 is mid-rail output buffer
10 = Reserved
11 = OUT4 is mid-rail output buffer
Ear Speaker Source Control
00 = No ear speaker
01 = MONO and HPL
10 = OUT3 and HPL
11 = OUT4 and HPL
Output PGAs Disable Control
1 = Disabled
0 = Enabled
Internal Clock Disable Control
1 = Disabled
0 = Enabled
AC-Link Disable Control
1 = Disabled
0 = Enabled
Analogue Disable Control
1 = Disabled
0 = Enabled
Input PGAs and Mixers Disable Control
1 = Disabled
0 = Enabled
Stereo DAC Disable Control
1 = Disabled
0 = Enabled
Stereo ADC and Record Mux Disable Control
1 = Disabled
0 = Enabled
VREF Ready (Read Only)
1 = VREF ready
0 = VREF not ready
Analogue Mixers Ready (Read Only)
1 = Analogue mixers ready
0 = Analogue mixers not ready
Stereo DAC Ready (Read Only)
1 = DAC ready
0 = DAC not ready
Stereo ADC Ready (Read Only)
1 = ADC ready
0 = ADC not ready
DESCRIPTION
DESCRIPTION
PP, Rev 3.2, October 2008
WM9714L
Analogue
Audio Outputs
Power
Management
REFER TO
REFER TO
93