wm8770 Wolfson Microelectronics plc, wm8770 Datasheet - Page 42

• Manufacturer Part Number: wm8770
• Description: 24-bit, 192khz 8-channel Codec With Volume Control
• Manufacturer: Wolfson Microelectronics plc

WM8770
w
10100
Mute Control
10101
DAC Control
10110
Interface
Control
REGISTER
ADDRESS
BIT
3:0
3:0
7:4
5:4
1:0
4
5
3
8
2
DMUTE[3:0]
DEEMP[3:0]
DZFM[3:0]
MUTEALL
ADCHPD
FMT[1:0]
RECEN
WL[1:0]
LABEL
BCP
LRP
DEFAULT
0000
0000
0000
10
10
0
0
0
0
0
DAC Channel Soft Mute Enables:
DAC Channel Master Soft Mute. Mutes all DAC channels:
REC Output Enable
De-emphasis Mode Select:
Selects the ouput for ZFLG1 and ZFLG2 pins (see Table 9).
Interface Format Select
00: right justified mode
01: left justified mode
10: I
11: DSP mode
ADCLRC/DACLRC Polarity or DSP Early/Late mode select
Left Justified / Right Justified /
I
0: Standard DACLRC Polarity
1: Inverted DACLRC Polarity
BITCLK Polarity
Input Word Length
ADC Highpass Filter Disable:
2
S
2
S mode
0: Normal - DIN[3:0], DACLRC & ADCLRC sampled on
rising edge of BCLK; DOUT changes on falling edge of
BCLK.
1: Inverted - DIN[3:0], DACLRC & ADCLRC sampled on
falling edge of BCLK; DOUT changes on rising edge of
BCLK.
00: 16-bit Mode
01: 20-bit Mode
10: 24-bit Mode
11: 32-bit Mode (not supported in right justified mode)
0: mute disabled
1: mute enabled
0: mute disabled
1: mute enabled
0 : REC output muted
1: REC output enabled
0 : Normal Mode
1: De-emphasis Mode
1: indicates 1024 consecutive zero input samples on the
channels selected
0: indicates at least one of selected channels has non
zero sample in last 1024 inputs
0: Highpass Filter enabled
1: Highpass Filter disabled
DESCRIPTION
DSP Mode
0: Early DSP mode
1: Late DSP mode
PD Rev 4.2 March 2008
Production Data
42