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Table 12
Audio Codec Signal Descriptions
Signal
Description
I/O
PU/PD
Comment
AC_RST#
CODEC Reset
O 3.3V
AC_SYNC
Serial Bus Synchronization.
O 3.3V PU 10k
3.3V
AC_SYNC is a boot strap signal
(see note below)
AC_BIT_CLK
12.228 MHz Serial Bit Clock from CODEC.
O 3.3V
AC_SDOUT
Audio Serial Data Output to CODEC.
O 3.3V PU 10k
3.3V
AC_SDOUT is a boot strap signal
(see note below)
AC_SDIN0
Audio Serial Data Input from CODEC0.
Optional, contact congatec
technical support for more
information about this signal.
AC_SDIN1
Audio Serial Data Input from CODEC0.
Not supported
AC_SDIN2
Audio Serial Data Input from CODEC0.
I 3.3V
CODECSET
Disable onboard Audio Codec.
I 3.3V
PD 10k
Note
Some signals have special functionality during the reset process. They may bootstrap
some basic important functions of the module. For more information refer to section 6.8
of this user's guide.
Table 13
USB Signal Descriptions
Signal
Description
I/O
PU/PD
Comment
USBP4
USB Port 4, data + or D+
N.C.
Not supported
USBP4#
USB Port 4, data - or D-
N.C.
Not supported
USBP5
USB Port 5, data + or D+
N.C.
Not supported
USBP5#
USB Port 5, data - or D-
N.C.
Not supported
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