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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)

Adlink Express-HRR Bedienungsanleitung Seite 31