WM8985_07 WOLFSON [Wolfson Microelectronics plc], WM8985_07 Datasheet - Page 95

• Manufacturer Part Number: WM8985_07
• Description: Multimedia CODEC With Class D Headphone and Line Out
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

Pre-Production
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9 (09h)
10 (0Ah)
11 (0Bh)
REGISTER
ADDRESS
5:4
3
2:0
8:7
6
5:4
3:0
8:7
6
5:4
3
2
1
0
8
BIT
OPCLKDIV
GPIO1POL
GPIO1SEL
[2:0]
JD_EN
JD_SEL
SOFTMUTE
DACOSR128
AMUTE
DACPOLR
DACPOLL
DACVU
LABEL
00
0
000
00
0
00
0
00
0
00
0
0
0
0
N/A
DEFAULT
PLL Output clock division ratio
00=divide by 1
01=divide by 2
10=divide by 3
11=divide by 4
GPIO1 Polarity invert
0=Non inverted
1=Inverted
CSB/GPIO1 pin function select:
000= input (CSB/jack detection: depending on
MODE setting)
001= reserved
010=Temp ok
011=Amute active
100=PLL clk o/p
101=PLL lock
110=logic 1
111=logic 0
Reserved. Initialise to 00
Jack Detection Enable
0=disabled
1=enabled
Pin selected as jack detection input
00 = GPIO1
01 = GPIO2
10 = GPIO3
11 = Reserved
Reserved. Initialise to 0
Reserved. Initialise to 0
Softmute enable:
0=Disabled
1=Enabled
Reserved. Initialise to 0
DAC oversample rate select
0 = 64x (lowest power)
1 = 128x (best SNR)
Automute enable
0 = Amute disabled
1 = Amute enabled
Right DAC output polarity:
0 = non-inverted
1 = inverted (180 degrees phase shift)
Left DAC output polarity:
0 = non-inverted
1 = inverted (180 degrees phase shift)
DAC left and DAC right volume do not update
until a 1 is written to DACVU (in reg 11 or 12)
DESCRIPTION
PP, Rev 3.5, January 2007
General
Purpose
Input/Output
(GPIO)
General
Purpose
Input/Output
(GPIO)
General
Purpose
Input/Output
(GPIO)
Output
Switching
(Jack Detect)
Output
Switching
(Jack Detect)
Output Signal
Path
Power
Management
Output Signal
Path
Output Signal
Path
Output Signal
Path
Digital to
Analogue
Converter
(DAC)
REFER TO
WM8985
95