WM8951L_07 WOLFSON [Wolfson Microelectronics plc], WM8951L_07 Datasheet - Page 36

• Manufacturer Part Number: WM8951L_07
• Description: Stereo ADC with Microphone Input and Clock Generator
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

WM8951L
w
Table 24 Register Map Description
0000111
Digital Audio
Interface
Format
0001000
Sampling
Control
0001001
Active Control
0001111
Reset Register
REGISTER
ADDRESS
5
6
7
1:0
3:2
6
7
0
1
5:2
6
7
0
8:0
BIT
OSCPD
CLKOUTPD
POWEROFF
FORMAT[1:0]
IWL[1:0]
MS
BCLKINV
USB/
NORMAL
BOSR
SR[3:0]
CLKIDIV2
CLKODIV2
ACTIVE
RESET
LABEL
0
0
1
10
10
0
0
0
0
0000
0
0
0
not reset
DEFAULT
Oscillator Power Down
1 = Enable Power Down
0 = Disable Power Down
CLKOUT power down
1 = Enable Power Down
0 = Disable Power Down
POWEROFF mode
1 = Enable POWEROFF
0 = Disable POWEROFF
Audio Data Format Select
11 = DSP Mode, frame sync + 2 data
packed words
10 = I
justified
01 = MSB-First, left justified
00 = MSB-First, right justified
Input Audio Data Bit Length Select
11 = 32 bits
10 = 24 bits
01 = 20 bits
00 = 16 bits
Master Slave Mode Control
1 = Enable Master Mode
0 = Enable Slave Mode
Bit Clock Invert
1 = Invert BCLK
0 = Don’t invert BCLK
Mode Select
1 = USB mode (250/272fs)
0 = Normal mode (256/384fs)
Base Over-Sampling Rate
USB Mode
0 = 250fs
1 = 272fs
ADC sample rate control;
See USB Mode and Normal Mode
Sample Rate sections for operation
Core Clock divider select
1 = Core Clock is MCLK divided by 2
0 = Core Clock is MCLK
CLKOUT divider select
1 = CLOCKOUT is Core Clock
divided by 2
0 = CLOCKOUT is Core Clock
Activate Interface
1 = Active
0 = Inactive
Reset Register
Writing 00000000 to register resets
device
2
S Format, MSB-First left-1
DESCRIPTION
PD Rev 4.1 December 2007
Normal Mode
0 = 256fs
1 = 384fs
Production Data
36