wm9714l Wolfson Microelectronics plc, wm9714l Datasheet - Page 96

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

36h
WM9714L
Register 36h controls the PCM codec.
w
REGISTER
ADDRESS
15
14:13
11:9
8
7
6
5:4
3:2
1:0
BIT
CTRL
MODE
DIV
VDACOSR
CP
FSP
SEL
WL
FMT
LABEL
0 (GPIO reg)
10 (master
mode)
010 (1/4)
0 (64x)
0 (normal)
0
00 (LandR
data)
10 (24 bits)
10 (I
DEFAULT
2
S)
GPIO Pin Configuration Control
0 = GPIO pins used as GPIOs
1 = GPIO pins used as PCM interface
PCM Interface Mode Control
00 = PCM interface disabled
01 = Slave mode
10 = Master mode
11 = Partial master mode
PCMCLK Rate Control
000 = Voice DAC clock
001 = Voice DAC clock / 2
010 = Voice DAC clock / 4
011 = Voice DAC clock / 8
100 = Voice DAC clock / 16
All other values are reserved
Voice DAC Oversampling Rate Control
0 = 64 x fs
1 = 128 x fs
PCMCLK Polarity Control
0 = Normal
1 = Inverted
FMT = 00, 01 or 10
PCMFS Polarity
Control
0 = Normal
1 = Inverted
PCM ADC Output Channel Control
00 = Normal stereo
01 = Reverse stereo
10 = Output left ADC data only
11 = Output right ADC data only
PCM Data Word Length Control
00 = 16-bit
01 = 20-bit
10 = 24-bit
11 = 32-bit (not supported when FMT=00)
PCM Data Format Control
00 = Right justified
01 = Left justified
10 = I
11 = DSP mode
2
S
DESCRIPTION
FMT = 11
DSP Mode Control
0 = DSP Mode A
1 = DSP Mode B
PP, Rev 3.2, October 2008
Pre-Production
PCM Codec
REFER TO
96