Page 16
Express-HLE
3.3
AB Signal Descriptions
3.3.1
Audio Signals
Signal
Pin #
Description
I/O
PU/PD
Comment
AC_RST# /
HDA_RST#
A30
Reset output to codec, active low.
O 3.3VSB
VSB because PCH uses suspend
power for RESET
AC_SYNC /
HDA_SYNC
A29
Sample-synchronization signal to the codec(s).
O 3.3V
AC_BITCLK /
HDA_BITCLK
A32
Serial data clock generated by the external
codec(s).
I/O 3.3V
AC _SDOUT /
HDA_SDOUT
A33
Serial TDM data output to the codec.
O 3.3V
AC _SDIN[2:0]
HDA_SDIN[2:0]
B28
B30
Serial TDM data inputs from up to 3 codecs.
I/O 3.3V
3.3.2
Analog VGA
Signal
Pin # Description
I/O
PU/PD
Comment
VGA_RED
B89
Red for monitor.
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
O Analog
PD 150R
Shall also be terminated on the
carrier with 150
Ω
resistor to
ground close to VGA connector
VGA_GRN
B91
Green for monitor
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
O Analog
PD 150R
Shall also be terminated on the
carrier with 150
Ω
resistor to
ground close to VGA connector
VGA_BLU
B92
Blue for monitor.
Analog DAC output, designed to drive a
37.5-Ohm equivalent load.
O Analog
PD 150R
Shall also be terminated on the
carrier with 150
Ω
resistor to
ground close to VGA connector
VGA_HSYNC
B93
Horizontal sync output to VGA monitor
O 3.3V
VGA_VSYNC
B94
Vertical sync output to VGA monitor
O 3.3V
VGA_I2C_CK
B95
DDC clock line (I²C port dedicated to identify
VGA monitor capabilities)
I/O OD 3.3V
PU 2k2 3.3V
VGA_I2C_DAT
B96
DDC data line.
I/O OD 3.3V
PU 2k2 3.3V
Содержание COM Express Express-HLE
Страница 1: ...Express HLE User s Manual Manual Revision 1 01 Revision Date October 22 2014 Part Number 50 1J050 1010...
Страница 11: ...Express HLE Page 11 2 16 Mechanical Drawing...
Страница 21: ...Express HLE Page 21 3 3 10 USB Root Segmentation...
Страница 37: ...Express HLE Page 37 4 6 Express HLE Switch Settings 4 6 1 Switch Locations SW4 SW1 SW3...