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©
2013
congatec
AG
TU87m12
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Table 13 Embedded DisplayPort Signal Descriptions
Signal
Pin #
Description
I/O
PU/PD
Comment
eDP_TX3-
eDP_TX2-
eDP_TX1-
eDP_TX0-
A81
A82
A71
A72
A73
A74
A75
A76
eDP differential pairs.
AC coupled off
module.
eDP_TX2 and eDP_TX3 pairs are not supported on
conga-TC87.
eDP_VDD_EN
A77
eDP power enable.
O 3.3V
PD 10k
eDP_BKLT_EN
B79
eDP backlight enable.
O 3.3V
PD 10k
eDP_BKLT_CTRL
B83
eDP backlight brightness control.
O 3.3V
A83
eDP AUX+.
AC coupled off
module.
eDP_AUX-
A84
eDP AUX-.
AC coupled off
module.
eDP_HPD
A87
Detection of Hot Plug / Unplug and notification of the link layer.
I 3.3V
Table 14 SPI BIOS Flash Interface Signal Descriptions
Signal
Pin #
Description
I/O
PU/PD
Comment
SPI_CS#
B97
Chip select for Carrier Board SPI BIOS Flash.
O 3.3VSB
Carrier shall pull to SPI_POWER when
external SPI provided but not used.
SPI_MISO
A92
Data in to module from carrier board SPI BIOS flash.
I 3.3VSB
SPI_MOSI
A95
Data out from module to carrier board SPI BIOS flash.
O 3.3VSB
SPI_CLK
A94
Clock from module to carrier board SPI BIOS flash.
O 3.3VSB
SPI_POWER
A91
Power source for carrier board SPI BIOS flash. SPI_POWER shall be used to power
SPI BIOS flash on the carrier only.
+ 3.3VSB
BIOS_DIS0#
A34
Selection strap to determine the BIOS boot device.
I 3.3VSB
PU 10K
3.3VSB
Carrier shall be left as no-connect.
BIOS_DIS1#
B88
Selection strap to determine the BIOS boot device.
I 3.3VSB
PU 10K
3.3VSB
Carrier shall be left as no-connect