ADLINK Technology Express-BD74, User Manual

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22
Pinouts and Signal Descriptions
Signal Pin Description I/O PU/PD Comment
10G_SFP_SDA0
10G_SFP_SDA1 C39
C38 I
2
C Data signal, of the 2-wire
management interface used by 10GbE
controller to access the management
registers of an external Optical SFP+
module
I/O OD
3.3VSB PU 2.2k
3.3VSB
10G_SFP_SCL0
10G_SFP_SCL1 D39
D38 I
2
C Clock signal, of the 2-wire
management interface used by 10GbE
controller to access the management
registers of an external Optical SFP+
module
I/O OD
3.3VSB PU 2.2k
3.3VSB
10G_PHY_RST_01 C35 Output signal that resets and Optical
PHY on port 0 and port 1 O
3.3VSB This signal is not
used for Copper PHY
10G_PHY_CAP_01 D35 Phy mode capability pin: Indicates if the
PHY for 10G lanes 0 and1 is capable of
configuration by I2C. High indicates
MDIO-only configuration, and low
indicates configuration capability via
I2C or MDIO. The actual protocol used
for PHY configuration is determined by
the module, in part based on this input.
The actual protocol used is indicated
over the dedicated I2C interface I 3.3VSB PU 10k
3.3VSB
Default state is MDIO
mode. For I
2
C mode
pull down with 1K on
carrier
10G_LED_SDA C36 I
2
C Data signal, of the 2-wire that
transfers all LED signals and additional
Strapping signal for I
2
C or MDIO mode
of Optical PHY
I/O OD
3.3VSB PU 2.2k
3.3VSB LED signals for
10GbE port 2/3 are
also transferred
through this pin
10G_LED_SCL C37 I
2
C Clock signal, of the 2-wire that
transfers all LED signals and additional
Strapping signal for I
2
C or MDIO mode
of Optical PHY
I/O OD
3.3VSB PU 2.2k
3.3VSB LED signals for
10GbE port 2/3 are
also transferred
through this pin
3.4.4. PCI Express
Signal Pin Description I/O PU/PD Comment
PC
PCIE_TX16- D52
D53 PCI Express channel 16, Transmit Output
differential pair. O PCIE AC coupled on Module
PC
PCIE_RX16- C52
C53 PCI Express channel 16, Receive Input
differential pair. I PCIE AC coupled off Module
PC
PCIE_TX17- D55
D56 PCI Express channel 17, Transmit Output
differential pair. O PCIE AC coupled on Module
PC
PCIE_RX17- C55
C56 PCI Express channel 17, Receive Input
differential pair. I PCIE AC coupled off Module
PC
PCIE_TX18- D58
D59 PCI Express channel 18, Transmit Output
differential pair. O PCIE AC coupled on Module
PC
PCIE_RX18- C58
C59 PCI Express channel 18, Receive Input
differential pair. I PCIE AC coupled off Module
PC
PCIE_TX19- D61
D62 PCI Express channel 19, Transmit Output
differential pair. O PCIE AC coupled on Module
PC
PCIE_RX19- C61
C62 PCI Express channel 19, Receive Input
differential pair. I PCIE AC coupled off Module