CS4385(2004) View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS4385 Datasheet PDF : 56 Pages
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CS4385
5.3 PCM Control (address 03h)
7
DIF3
0
6
DIF2
0
5
DIF1
0
4
DIF0
0
3
Reserved
0
2
Reserved
0
1
FM1
1
0
FM0
1
5.3.1 DIGITAL INTERFACE FORMAT (DIF)
Default = 0000 - Format 0 (Left Justified, up to 24-bit data)
Function:
These bits select the interface format for the serial audio input. The DSD/PCM bit determines whether
PCM or DSD mode is selected.
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 Figures 9-19.
DIF3
0
0
0
0
0
0
1
1
1
1
1
X
DIF2
0
0
0
0
1
1
0
0
0
0
1
X
DIF1
0
0
1
1
0
0
0
0
1
1
0
X
DIF0
0
1
0
1
0
1
0
1
0
1
0
X
DESCRIPTION
Left Justified, up to 24-bit data
I2S, up to 24-bit data
Right Justified, 16-bit data
Right Justified, 24-bit data
Right Justified, 20-bit data
Right Justified, 18-bit data
One-line Mode 1, 24-bit Data +SDIN4
One-line Mode 2, 20-bit Data +SDIN4
One-line Mode 3, 24-bit 6-channel
One-line Mode 4, 20-bit 6-channel
TDM
All other combinations are Reserved
Table 7. Digital Interface Formats - PCM Mode
Format
0
1
2
3
4
5
8
9
10
11
12
FIGURE
9
10
11
12
13
14
15
16
17
18
19
5.3.2 FUNCTIONAL MODE (FM)
Default = 11
00 - Single-Speed Mode (4 to 50 kHz sample rates)
01 - Double-Speed Mode (50 to 100 kHz sample rates)
10 - Quad-Speed Mode (100 to 200 kHz sample rates)
11 - Auto Speed Mode detect (32 kHz to 200 kHz sample rates)
Function:
Selects the required range of input sample rates or Auto Speed Mode.
DS671A1
39
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