5 power down (pdn), 2 mode control 2 (address 02h), 1 digital interface format (dif) – Cirrus Logic CS4382A User Manual
Page 34: Table 5. digital interface formats - pcm mode, D dif registers. see, Digital, Cs4382a
34
DS618F2
CS4382A
6.1.5
Power Down (PDN)
Default = 1
0 - Disabled
1 - Enabled
Function:
The entire device will enter a low-power state when this function is enabled, and the contents of the control
registers are retained in this mode. The power-down bit defaults to ‘enabled’ on power-up and must be
disabled before normal operation in Control Port Mode can occur.
6.2
Mode Control 2 (Address 02h)
6.2.1
Digital Interface Format (DIF)
Default = 000 - Format 0 (Left-Justified, up to 24-bit data)
Function:
These bits select the interface format for the serial audio input. The Functional Mode bits determine
whether PCM or DSD Mode is selected.
PCM Mode:
The required relationship between the Left/Right clock, serial clock and serial data is defined
by the Digital Interface Format and the options are detailed in
Note:
While in PCM Mode, the DIF bits should only be changed when the power-down (PDN) bit is set
to ensure proper switching from one mode to another.
7
6
5
4
3
2
1
0
Reserved
DIF2
DIF1
DIF0
Reserved
Reserved
Reserved
Reserved
0
0
0
0
0
0
0
0
DIF2
DIF1
DIF0
DESCRIPTION
Format
FIGURE
0
0
0
Left-Justified, up to 24-bit data
0
0
0
1
I²S, up to 24-bit data
1
0
1
0
Right-Justified, 16-bit data
2
0
1
1
Right-Justified, 24-bit data
3
1
0
0
Right-Justified, 20-bit data
4
1
0
1
Right-Justified, 18-bit data
5
1
1
0
Reserved
-
1
1
1
Reserved
-
Table 5. Digital Interface Formats - PCM Mode