Express-BD7
Pinouts and Signal Descriptions
9
3. Pinouts and Signal Descriptions
3.1. AB/CD Pin Definitions
The Express-BD7 is a Type 7 module supporting up to 32 PCIe lanes and 10G Ethernet on the CD connector and
NC-SI on the AB connector. In the table below, all standard pins of the COM Express specification are described,
including those not supported on the Express-BD7. Signals not supported on the Express-BD7 module are crossed
out.
Table 1: Express-BD7 AB/CD Pin Definitions
Row A
Row B
Row C
Row D
Pin
Name
Pin
Name
Pin
Name
Pin
Name
A1
GND (fixed)
B1
GND (fixed)
C1
GND (fixed)
D1
GND (fixed)
A2
GBE0_MDI3-
B2
GBE0_ACT#
C2
GND
D2
GND
A3
GB
B3
LPC_FRAME#
/ESPI_CS0#
C3
USB_SSRX0-
D3
USB_SSTX0-
A4
GBE0_LINK100#
B4
LPC_AD0
/ESPI_IO_0
C4
US
D4
US
A5
GBE0_LINK1000#
B5
LPC_AD1
/ESPI_IO_1
C5
GND
D5
GND
A6
GBE0_MDI2-
B6
LPC_AD2
/ESPI_IO_2
C6
USB_SSRX1-
D6
USB_SSTX1-
A7
GB
B7
LPC_AD3
/ESPI_IO_3
C7
US
D7
US
A8
GBE0_LINK#
B8
LPC_DRQ0#
/ESPI_ALERT0#
C8
GND
D8
GND
A9
GBE0_MDI1-
B9
LPC_DRQ1#
/ESPI_ALERT1#
C9
USB_SSRX2-
D9
USB_SSTX2-
A10
GB
B10
LPC_CLK
/ESPI_CK
C10
US
D10
US
A11
GND (fixed)
B11
GND (fixed)
C11
GND (fixed)
D11
GND (fixed)
A12
GBE0_MDI0-
B12
PWRBTN#
C12
USB_SSRX3-
D12
USB_SSTX3-
A13
GB
B13
SMB_CK
C13
US
D13
US
A14
GBE0_CTREF
B14
SMB_DAT
C14
GND
D14
GND
A15
SUS_S3#
B15
SMB_ALERT#
C15
10G_PHY_MDC_SCL3
D15
10G_PHY_MDIO_SDA3
A16
S
B16
S
C16
10G_PHY_MDC_SCL2
D16
10G_PHY_MDIO_SDA2
A17
SATA0_TX-
B17
SATA1_TX-
C17
10G_SDP2
D17
10G_SDP3
A18
SUS_S4#
B18
SUS_STAT#
/ESPI_RESET#
C18
GND
D18
GND
A19
S
B19
S
C19
P
D19
P
A20
SATA0_RX-
B20
SATA1_RX-
C20
PCIE_RX6-
D20
PCIE_TX6-
A21
GND (fixed)
B21
GND (fixed)
C21
GND (fixed)
D21
GND (fixed)
A22
PC
B22
PC
C22
P
D22
P
A23
PCIE_TX15-
B23
PCIE_RX15-
C23
PCIE_RX7-
D23
PCIE_TX7-
A24
SUS_S5#
B24
PWR_OK
C24
10G_INT2
D24
10G_INT3
A25
PC
B25
PC
C25
GND
D25
GND
A26
PCIE_TX14-
B26
PCIE_RX14-
C26
10G
D26
10G
A27
BATLOW#
B27
WDT
C27
10G_KR_RX3-
D27
10G_KR_TX3-
A28
(S)ATA_ACT#
B28
RSVD
C28
GND
D28
GND
A29
RSVD
B29
RSVD
C29
10G
D29
10G
A30
RSVD
B30
RSVD
C30
10G_KR_RX2-
D30
10G_KR_TX2-
A31
GND (fixed)
B31
GND (fixed)
C31
GND (fixed)
D31
GND (fixed)
A32
RSVD
B32
SPKR
C32
10G_SFP_SDA3
D32
10G_SFP_SCL3
A33
RSVD
B33
I2C_CK
C33
10G_SFP_SDA2
D33
10G_SFP_SCL2
A34
BIOS_DIS0#
/ESPI_SAFS
B34
I2C_DAT
C34
10G_PHY_RST_23
D34
10G_PHY_CAP_23
A35
THRMTRIP#
B35
THRM#
C35
10G_PHY_RST_01
D35
10G_PHY_CAP_01