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Product Datasheet
13
82571EB/82572EI Gigabit Ethernet Controller
Port 1 (82571EB Only)
MDI_PLUS0_1
MDI_MINUS0_1
A
Media Dependent Interface [1].
1000BASE-T
: In MDI configuration, these correspond to BI_DB+/-, and in MDI-X
configuration, they correspond to BI_DA+/-.
100BASE-TX
: In MDI configuration, they are used for the receive pair, and in MDI-X
configuration, they are used for the transit pair.
10BASE-T
: In MDI configuration, they are used for the receive pair, and in MDI-X
configuration, they are used for the transit pair.
MDI_PLUS0_2
MDI_MINUS0_2
A
Media Dependent Interface [2].
1000BASE-T
: In MDI configuration, these correspond to BI_DC+/-, and in MDI-X
configuration, they correspond to BI_DD+/-.
100BASE-TX
: Unused.
10BASE-T
: Unused.
MDI_PLUS0_3
MDI_MINUS0_3
A
Media Dependent Interface [3].
1000BASE-T
: In MDI configuration, these correspond to BI_DD+/-, and in MDI-X
configuration, they correspond to BI_DC+/-.
100BASE-TX
: Unused.
10BASE-T
: Unused.
Symbol
Type
Name and Function
Symbol
Type
Name and Function
RBIAS1p/
RSVD_M14
RBIAS1n/
RSVD_N14
P
Bias Resistors.
These are the reference connections for the Media Dependent Interface.
The recommended resistor value should be connected across the positive/negative pair,
even if the MDI interface is not used. Refer to the 82571EB/82572EI Design Guide for
the recommended value.
MDI_PLUS1_0/
RSVD_T14
MDI_MINUS1_0/
RSVD_R14
A
Media Dependent Interface [0].
1000BASE-T
: In MDI configuration, these correspond to BI_DA+/-, and in MDI-X
configuration, they correspond to BI_DB+/-.
100BASE-TX
: In MDI configuration, they are used for the transmit pair, and in MDI-X
configuration, they are used for the receive pair.
10BASE-T
: In MDI configuration, they are used for the transmit pair, and in MDI-X
configuration, they are used for the receive pair.
MDI_PLUS1_1/
RSVD_T15
MDI_MINUS1_1/
RSVD_R15
A
Media Dependent Interface [1].
1000BASE-T
: In MDI configuration, these correspond to BI_DB+/-, and in MDI-X
configuration, they correspond to BI_DA+/-.
100BASE-TX
: In MDI configuration, they are used for the receive pair, and in MDI-X
configuration, they are used for the transit pair.
10BASE-T
: In MDI configuration, they are used for the receive pair, and in MDI-X
configuration, they are used for the transit pair.
MDI_PLUS1_2/
RSVD_P16
MDI_MINUS1_2/
RSVD_P15
A
Media Dependent Interface [2].
1000BASE-T
: In MDI configuration, these correspond to BI_DC+/-, and in MDI-X
configuration, they correspond to BI_DD+/-.
100BASE-TX
: Unused.
10BASE-T
: Unused.
MDI_PLUS1_3/
RSVD_N16
MDI_MINUS1_3/
RSVD_N15
A
Media Dependent Interface [3].
1000BASE-T
: In MDI configuration, these correspond to BI_DD+/-, and in MDI-X
configuration, they correspond to BI_DC+/-.
100BASE-TX
: Unused.
10BASE-T
: Unused.