wm8903 Wolfson Microelectronics plc, wm8903 Datasheet - Page 121

• Manufacturer Part Number: wm8903
• Description: Ultra Low Power Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
R18 (12h)
Power
Management
6
Register 12h Power Management 6
R20 (14h)
Clock Rates
0
Register 14h Clock Rates 0
R21 (15h)
Clock Rates
1
w
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
13:10
BIT
BIT
BIT
0
3
2
1
0
CLK_SYS_RATE[3:0]
DACR_ENA
ADCR_ENA
DACL_ENA
ADCL_ENA
MCLKDIV2
LABEL
LABEL
LABEL
DEFAULT
DEFAULT
0
0
0
0
DEFAULT
0
0011
Left DAC Enable
0 = DAC disabled
1 = DAC enabled
Right DAC Enable
0 = DAC disabled
1 = DAC enabled
Left ADC Enable
0 = disabled
1 = enabled
Right ADC Enable
0 = disabled
1 = enabled
Enables divide by 2 on MCLK
0 = CLK_SYS = MCLK
1 = CLK_SYS = MCLK / 2
CLK_SYS / Sample rate (fs) ratio
if CLK_SYS_MODE = 00 (256*fs related clocks)
0000 = 64*fs
0001 = 128*fs
0010 = 192*fs
0011 = 256*fs
0100 = 384*fs
0101 = 512*fs
0110 = 768*fs
0111 = 1024 *fs
1000 = 1408*fs
1001 = 1536*fs
1010 to 1111 = Reserved
if CLK_SYS_MODE = 01 (272*fs related clocks)
0000 = 68*fs
0001 = 136*fs
0010 = 204*fs
0011 = 272*fs
0100 = 408*fs
0101 = 544*fs
0110 = 816*fs
0111 = 1088 *fs
1000 = 1496*fs
1001 = 1632*fs
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, Rev 3.1, August 2009
WM8903
121