86
DS1113F1
CS4399
7.5 Analog Output and PCM Registers
7.5 Analog Output and PCM Registers
0
MIX_PCM_
DSD
Enable PCM stream mixing into DSD stream. This bit must be set only after MIX_PCM_PREP is enabled. Disable this
bit prior to disabling MIX_PCM_PREP bit. This mode requires DSD_EN to be enabled and DSD_PRC_SRC set to
receive DSD through either the DSD interface or XSP.
0 (Default) Function disabled
1 Enable PCM stream mixing into the DSD stream
7.4.7
DSD Processor Path Signal Control 3
Address 0x70006
R/W
7
6
5
4
3
2
1
0
DSD_ZERODB DSD_HPF_EN
—
SIGCTL_
DSDEQPCM
DSD_INV_A
DSD_INV_B
DSD_SWAP_
CHAN
DSD_COPY_
CHAN
Default
0
1
0
0
0
0
0
0
Bits
Name
Description
7
DSD_
ZERODB
Setting on DSD stream volume to match PCM stream volume.
0 (Default) The SACD +3.1-dB level (71% modulation index) matches PCM 0 dB full scale.
1 The SACD 0-dB reference level (50% modulation index) matches PCM 0 dB full scale.
6
DSD_HPF_EN Enable the high pass filter in the DSD processor.
0 HPF disabled
1 (Default) Enable HPF in the DSD processor
5
—
Reserved
4
SIGCTL_
DSDEQPCM
Enable DSD signal path control register bits to be controlled by PCM setting. DSD setting is ignored. Register bits
affected are the following:
DSD_VOL_BEQA, DSD_SZC, DSD_AMUTE, DSD_AMUTE_BEQA, DSD_MUTE_A, DSD_MUTE_B, DSD_INV_A,
DSD_INV_B, DSD_SWAP_CHAN, DSD_COPY_CHAN
After set, each DSD_x register bit is equal to setting of PCM_x register bit.
0 (Default) Function is disabled
1 Function is enabled
3
DSD_INV_A DSD Processor Channel A signal invert.
0 (Default) Function is disabled
1 Signal polarity of channel A is inverted
2
DSD_INV_B DSD Processor Channel B signal invert
0 (Default) the function is disabled
1 Signal polarity of channel B is inverted
1
DSD_SWAP_
CHAN
Swap channels A and B at the input. This bit takes effect before DSD_COPY_CHAN and DSD_INV_x.
0 (Default) Function disabled
1 Enable channel A and B swapping
0
DSD_COPY_
CHAN
Copy channel A to channel B. This bit takes effect after DSD_SWAP_CHAN, but before DSD_INV_x.
0 (Default) Function disabled
1 Enable copy A to B function
7.5.1
Analog Output Control 1
Address 0x80000
R/W
7
6
5
4
3
2
1
0
—
—
OUT_FS
—
—
Default
0
0
1
1
0
0
0
0
Bits
Name
Description
7:6
—
Reserved
5:4
OUT_FS
Output full scale setting. This setting must only be updated when PDN_HP is set.
00 Reserved
01 Reserved
10 1.41 V
11 (Default) 1.73 V
3
—
Reserved
2:0
—
Reserved
Bits
Name
Description