Ab Signal Descriptions - ADLINK Technology cExpress-KL User Manual

3.3.

AB Signal Descriptions

3.3.1. Audio Signals
Signal Pin
AC_RST# / A30
HDA_RST#
AC_SYNC / A29
HDA_SYNC
AC_BITCLK / A32
HDA_BITCLK
AC _SDOUT / A33
HDA_SDOUT
AC _SDIN[2:0] B28
HDA_SDIN[2:0] B29
B30
3.3.2. Analog VGA (build option)
Signal Pin
VGA_RED B89
VGA_GRN B91
VGA_BLU B92
VGA_HSYNC B93
VGA_VSYNC B94
VGA_I2C_CK B95
VGA_I2C_DAT B96
Pinouts and Signal Descriptions
Description
Reset output to codec, active low.
Sample-synchronization signal to the
codec(s).
Serial data clock generated by the
external codec(s).
Serial TDM data output to the codec.
Serial TDM data inputs from up to 3
codecs.
Description
Red for monitor.
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
Green for monitor
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
Blue for monitor.
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
Horizontal sync output to VGA monitor
Vertical sync output to VGA monitor
DDC clock line (I²C port dedicated to
identify VGA monitor capabilities)
DDC data line.
I/O PU/PD Comment
O 3.3VSB
O 3.3V
I/O 3.3V
O 3.3V
I/O No AC/HDA_SDIN 2
3.3VSB (B28) support on this
platform
I/O PU/PD Comment
O Analog PD build option support
150R
O Analog PD build option support
150R
O Analog PD build option support
150R
O 3.3V build option support
O 3.3V build option support
I/O OD PU 2K2 build option support
3.3V 3.3V
I/O OD PU 2K2 build option support
3.3V 3.3V
cExpress-KL
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