cs4237b Cirrus Logic, Inc., cs4237b Datasheet - Page 47

• Manufacturer Part Number: cs4237b
• Description: Crystalclear Advanced Audio System With 3d Sound
• Manufacturer: Cirrus Logic, Inc.

Reserved (I27)
Default = xxxxxxxx
res
Capture Data Format (I28)
Default = 0000xxxx
res
S/M
C/L, FMT1, FMT0 set the capture data format in
DS213PP4
FMT1
D7
D7
res
FMT0
D6
D6
res
D5
D5
C/L
res
right channels. The mono input pro-
vides mix for the "beeper" function in
most personal computers.
0 - no mute
1 - muted
Reserved. Must write 0. Could read
as 0 or 1.
Reserved. Must write 0. Could read
as 0 or 1.
Stereo/Mono Select: This bit deter-
mines how the capture audio data
stream is formatted. Selecting stereo
will result with alternating samples
representing left and right audio
channels. Selecting mono only cap-
tures data from the left audio
channel. MCE (R0) or CMCE (I16)
must be set to modify S/M. See
Changing Audio Data Formats sec-
tion for more details.
0 - Mono
1 - Stereo
MODEs 2 and 3. See Table 11 or
register I8 for the bit settings and
data formats. The capture data for-
mat can be different than the
playback data format; however, the
S/M
D4
D4
res
D3
D3
res
res
D2
D2
res
res
D1
D1
res
res
D0
D0
res
res
Reserved (I29)
Default = xxxxxxxx
res
Capture Upper Base (I30)
Default = 00000000
CUB7-CUB0
Capture Lower Base (I31)
Default = 00000000
CLB7-CLB0
CUB7
CLB7
D7
D7
D7
res
CUB6
CLB6
D6
D6
D6
res
CUB5
CLB5
D5
D5
D5
res
sample frequency must be the same
and is set in I8. MCE (R0) or CMCE
(I16) must be set to modify this regis-
ter. See Changing Audio Data
Formats section for more details.
Reserved. Must write 0. Could read
as 0 or 1.
Capture Upper Base: This register is
the upper byte which represents the
8 most significant bits of the 16-bit
Capture Base register. Reads from
this this register returns the same
value that was written.
lower byte which represents the 8
least significant bits of the 16-bit
Capture Base register. Reads from
this register returns the same value
which was written.
Lower Base Bits: This register is the
CUB4
CLB4
D4
D4
D4
res
CUB3
CLB3
D3
D3
D3
res
CUB2
CLB2
D2
D2
D2
res
CUB1
CS4237B
CLB1
D1
D1
D1
res
CUB0
CLB0
D0
D0
D0
res
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