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Intel® 82575EB Gigabit Ethernet Controller — Serializer/Deserializer Signals

Intel® 82575EB Gigabit Ethernet Controller

317679-004

Datasheet

Revision: 2.11

January 2011

3.11

Serializer/Deserializer Signals

3.12

Test Interface Signals

Note:

Pull-up resistors are needed on these signals as shown in the reference schematic.

MDI0_P_2

MDI0_N_2

MDI1_P_2

MDI1_N_2

Media Dependent Interface [2]

1000BASE-T: In MDI configuration, MDIp2/MDIn2 corresponds to BI_DC+/-, and in

MDI-X configuration, MDIp2/MDIn2 corresponds to BI_DD+/-.

100BASE-TX: Unused.

10BASE-T: Unused.

MDI0_P_3

MDI0_N_3

MDI1_P_3

MDI1_N_3

Media Dependent Interface [3]

1000BASE-T: In MDI configuration, MDIp3/MDIn3 corresponds to BI_DD+/-, and in

MDI-X configuration, MDIp3/MDIn3 corresponds to BI_DC+/-.

100BASE-TX: Unused.

10BASE-T: Unused.

Symbol

Type

Name and Function

SRDSI_0_P

SRDSI_0_N

SRDSI_1_P

SRDSI_1_N

SERDES Receive Pairs A and B

These signals make the differential receive pair for the 1.25 GHz serial interface. For

serializer/deserializer operation, the inputs should be coupled to ECL voltage levels. If the

SERDES interface is not used, these pins should not be connected.

SRDSO_0_P

SRDSO_0_N

SRDSO_1_P

SRDSO_1_N

SERDES Transmit Pairs A and B

These signals make the differential transmit pair for the 1.25 GHz serial interface. For

serializer/deserializer operation, the outputs drive the LVPECL voltage levels. If the SERDES

interface is not used, these pins should not be connected.

SRDS0_SIG_DET/

SRDS1_SIG_DET

Signal Detects A and B

These pins indicate whether the SERDES signals (connected to the 1.25 GHz serial interface)

have been detected by the optical transceivers. If the SERDES interface is not used with

copper media, these can be left with no connection (NC). If the SERDES interface is not used

with fiber media, the SIG_DET inputs should be tied high to VCC.

SER_RCOMP

SERDES Impedance Compensation. Connect the recommended resistor (1.4K from this

ball to ground.

SFP0_I2C_CLK

Port 0 SFP I2C clock. Connects to Mod-Def1 input of SFP. Can also be used as MDC pin.

SFP0_I2C_DATA

TS/

Port 0 SFP I2C data. Connects to Mod-Def2 pin of SFP. Can also be used as MDIO pin

SFP1_I2C_CLK

Port 1 SFP I2C clock. Connects to Mod-Def1 input of SFP. Can also be used as MDC pin.

SFP1_I2C_DATA

TS/

Port 1 SFP I2C data. Connects to Mod-Def2 pin of SFP. Can also be used as MDIO pin

Symbol

Type

Name and Function

JTCK

JTAG Test Access Port Clock

JTDI

JTAG Test Access Port Test Data In

Symbol

Type

Name and Function

82575EB Datasheet(PDF) 16 Page - Intel Corporation

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