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nanoX-BT
3.3.
AB Signal Description
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
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 3.3VSB
AC_SDIN0: supported
AC_SDIN1: supported
AC_SDIN2: not supported
3.3.2.
LVDS/eDP
Signal
Pin #
Description
I/O
PU/PD
Comment
/
LVDS_A0- / eDP_TX2-
/
LVDS_A1- / eDP_TX1-
/
LVDS_A2- /
LVDS_A3-
A71
A72
A73
A74
A75
A76
A78
A79
LVDS Channel A differential
pairs
O LVDS
LV /
LVDS_A_CK- / eDP_TX3-
A81
A82
LVDS Channel A differential
clock
O LVDS
LVDS_VDD_EN / eDP_VDD_EN
A77
LVDS panel power enable
O 3.3V
LVDS_BKLT_EN / eDP_BKLT_EN
B79
LVDS panel backlight enable
O 3.3V
eDP
by build option
LVDS_BKLT_CTRL / eDP_BKLT_CTRL
B83
LVDS panel backlight brightness
control
O 3.3V
PD 100k Realtek eDP to
LVDS
requirement
LVDS_I2C_CK /
A83
DDC lines used for flat panel
detection and control.
O 3.3V
PU 2k2
3.3V
LVDS_I2C_DAT / eDP_AUX-
A84
DDC lines used for flat panel
detection and control.
I/O 3.3V
PU 2k2
3.3V
RSVD / eDP_HPD
A87
Digital Display Interface Hot-Plug
Detect
I 3.3V
