ADLINK Express-HRR - Manual (Page 31)

Chapter 3 Hardware
Express-HRR Reference Manual 27
COM Express C-D Connector
The COM Express C-D connector is a 220-pin connector providing the following features:
• Digital Display Interface (DDI)
• PCI Express
• PCI Express Graphics (PEG) interface
• SDVO functionality
Digital Display Interface (DDI)
The Digital Display Interface resides in the PCH and is divided into three digital ports (B, C, D). Each of
these digital ports can be configured natively to drive HDMI and DisplayPort signals. Digital Port B can also
be configured to drive SDVO signals.
PCI Express
™
The Express-HRR offers six (6) PCI Express x1 ports (ports 1-6) through the COM Express A-B connector
and two PCI Express x1 ports (ports 7-8) through the C-D connector. These ports can be configured to
support PCI Express edge cards or ExpressCards. Each x1 port supports up to 5 GT/s bandwidth in each
direction. Ports 1-4 and ports 5-8 can be independently configured as four x1s, two x2s, one x2 and two x1s,
or one x4 port widths. The eighth x1 port (port 8) is utilized by the onboard Gigabit Ethernet transceiver and
is unavailable as a PCIe port. The PCI Express interface is based on the PCI Express Specification 2.0. The
C-D connector also provides one PCIe x16 port for graphics (PEG) or other PCIe expansion cards and can
be configured using the bifurcation switch (SW1).
A91 SPI_POWER B91 VGA_GRN (PD 150E)
A92 SPI_MISO B92 VGA_BLU (PD 150E)
A93 GPO0 (PU 10k 3.3V S5 Standby) B93 VGA_HSYNC
A94 SPI_CLK B94 VGA_VSYNC
A95 SPI_MOSI B95 VGA_I2C_CK
A96 TPM_PP B96 VGA_I2C_DAT
A97 TYPE10# (Not Connected) B97 SPI_CS#
A98 SER0_TX (Not Connected) B98 RSVD
A99 SER0_RX (Not Connected) B99 RSVD
A100 GND B100 GND
A101 SER1_TX (Not Connected) B101 FAN_PWMOUT
A102 SER1_RX (Not Connected) B102 FAN_TACHIN
A103 LID# (PU 1k 3.3V) B103 SLEEP#
A104 VCC_12V B104 VCC_12V
A105 VCC_12V B105 VCC_12V
A106 VCC_12V B106 VCC_12V
A107 VCC_12V B107 VCC_12V
A108 VCC_12V B108 VCC_12V
A109 VCC_12V B109 VCC_12V
A110 GND B110 GND
Table 3-5. COM Express A-B Connector Signal Descriptions (Continued)