CS8406-IS Cirrus Logic, CS8406-IS Datasheet - Page 33
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CS8406-IS
Manufacturer Part Number
CS8406-IS
Description
192 KHZ DIGITAL AUDIO INTERFACE TRANSMITTER
Manufacturer
Cirrus Logic
Datasheet
1.CS8406-IS.pdf
(43 pages)
The channel status block pin (TCBL) may be an input or an output, determined by the state of
the TCBLD pin.
10.2 Serial Audio Port
The serial audio input port data format is selected as shown in Table 3, and may be set to master
or slave by the state of the APMS input pin. The OMCK clock ratio is selected as shown in
Table 4. Table 5 describes the equivalent software mode, bit settings for each of the available for-
mats. Timing diagrams are shown in Figure 7.
DS580F1
Table 5. Equivalent Register Settings of Serial Audio Input Formats Available in Hardware Mode
IF1 - Left Justified
IF2 - I²S
IF3 - Right Justified, 24-bit data
IF4 - Right Justified, 16-bit data
COPY/C
0
0
1
1
SFMT1
Table 2. Hardware Mode COPY/C and ORIG pin functions
0
0
1
1
Table 3. Hardware Mode Serial Audio Port Format Selection
Table 4. Hardware Mode OMCK Clock Ratio Selection
SFMT0
ORIG
HWCK1
0
1
0
1
0
1
0
1
0
0
1
1
Serial Input Format IF1 - Left Justified
Serial Input Format IF2 - I²S
Serial Input Format IF3 - Right Justified, 24-bit data
Serial Input Format IF4 - Right Justified, 16-bit data
PRO=0, COPY=0, L=0 copyright
PRO=0, COPY=0, L=1 copyright, pre-recorded
PRO=0, COPY=1, L=0 non-copyright
PRO=1
HWCK0
SISF SIRES1/0 SIJUST SIDEL SISPOL SILRPOL
0
1
0
1
0
0
0
0
OMCK Frequency is 256*Fs
OMCK Frequency is 128*Fs
OMCK Frequency is 512*Fs
OMCK Frequency is 256*Fs
00
00
00
10
Function
Function
0
0
1
1
Function
0
1
0
0
0
0
0
0
0
1
0
0
CS8406
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