Artesyn COMX-CORE Series Installation and Use (August 2014) - Manual (Page 67)

Functional Description
COMX-CORE Series Installation and Use (6806800K11F) 67
4.7.3 PEG and eDP Compatibility
The 16x PCI Express Graphics (PEG) is routed to the COM Express connector. The PEG
architecture supports four types of topologies: two for device down and two for add-in card.
The Arrandale ECC processor provides the function that multiplexes the embedded Display
Port (eDP) with the PCIe graphics signal. CFG4, CFG3, CFG0 are the strap signals. PCH GPIO48
is set as the input signal for external PEG x16 to enable configuration.
Port D
DDPD_[0]P N/A DDPD_[0]P TMDSD_DATA2
DDPD_[0]N N/A DDPD_[0]N TMDSD_DATA2#
DDPD_[1]P N/A DDPD_[1]P TMDSD_DATA1
DDPD_[1]N N/A DDPD_[1]N TMDSD_DATA1#
DDPD_[2]P N/A DDPD_[2]P TMDSD_DATA0
DDPD_[2]N N/A DDPD_[2]N TMDSD_DATA0#
DDPD_[3]P N/A DDPD_[3]P TMDSD_CLK
DDPD_[3]N N/A DDPD_[3]N TMDSD_CLK#
DDPD_AUXP N/A DDPD_AUXP N/A
DDPD_AUXN N/A DDPD_AUXN N/A
DDPD_HPD N/A DDPD_HPD HDMID_HPD
DDPD_CTRLCLK N/A N/A HDMID_CTRLCLK
DDPD_CTRLDATA N/A N/A HDMID_CTRLDATA
Table 4-5 Configuration Pin Mapping for DDI Ports (continued)
Port DDI PCH Pin Names SDVO Mapping DisplayPort Mapping HDMI/DVI Mapping
Table 4-6 PEG Strap Signals
Port Strap How to Strap Port?
COMX-CORE Series
Status
eDP enable CFG[4] Pull down to GND (Internal Pull Up) Optional pull up or Pull
down
PEG Reversal CFG[3] Pull down to GND (Internal Pull Up) Input from COM Express
conn, optional pull up or
Pull down