AK7755EN_16 Datasheet, PDF (38/109 Pages) Asahi Kasei Microsystems – DSP with Mono ADC Stereo CODEC + Mic/Lineout Amp

[AK7755]
CONT07: DSP Output Format Setting
W R Name D7
D6
D5
D4
D3 D2
D1
D0
Default
C7h 47h CONT07 DOF4[1] DOF4[0] DOF3[1] DOF3[0] 0 DOF1[2] DOF1[1] DOF1[0] 00h
D7, D6: DOF4[1:0] DSP DOUT4 Output Format Select
DOF4 mode DOF4[1:0]
Output Data Format
0
00
MSB justified (24-bit) (default)
1
01
LSB justified 24-bit
2
10
LSB justified 20-bit
3
11
LSB justified 16-bit
Set “00” for I²S Compatible, PCM Short and PCM Long formats.
Set “11” when BITFS[1:0] bits (CONT01: D5, D4) =2h (32fs).
Set “00” when connecting to the DAC.
D5, D4: DOF3[1:0] DSP DOUT3 Output Format Select
DOF3 mode DOF3[1:0]
Output Data Format
0
00
MSB justified (24-bit) (default)
1
01
LSB justified 24-bit
2
10
LSB justified 20-bit
3
11
LSB justified 16-bit
Set “00” for I²S Compatible, PCM Short and PCM Long formats.
Set “11” when BITFS[1:0] bits=2h (32fs).
D2, D1, D0: DOF1[2:0] DSP DOUT1 Output Format Select
DOF1 mode DOF1[2:0] Output Data Format
0
000
MSB (24-bit)
(default)
1
001
LSB 24-bit
2
010
LSB 20-bit
3
011
LSB 16-bit
4
100
MSB 8-bit μ-Law
5
101
MSB 8-bit A-Law
6
110
N/A
7
111 N/A
Set “000” for I²S Compatible, PCM Short and PCM Long formats.
Set “011” when BITFS[1:0] bits=2h (32fs).
Write “0” into the “0” registers.
014006643-E-00
- 38 -
2014/10