ADLINK Technology SMARC NXP LEC-IMX8M, Руководство пользователя

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ADLINK Technology Inc. LEC-iMX8M User’s Guide
Page 36 copyright © 2021 ADLINK Technology Inc.
4.3.8.2 Second LAN port (optional)
Second LAN port is available as build option and is derived from an Intel i210 controller connected to the PCIE_B port.
Name Pin # Description I/O
Type I/O
Level Power
Domain PU /
PD Comments
GB
GBE1_MDI0-
GB
GBE1_MDI1-
GB
GBE1_MDI2-
GB
GBE1_MDI3- S17
S18
S20
S21
S23
S24
S26
S27 Gigabit Ethernet Controller 1: Media Dependent
Interface Differential Pairs 0, 1, 2, 3. The MDI can
operate in 1000, 100, and 10Mbit/sec modes. Some
pairs are unused in some modes according to the
following:
1000 100 10
MDI[0]+/- B1_DA+/- TX+/- TX+/-
MDI[1]+/- B1_DB+/- RX+/- RX+/-
MDI[2]+/- B1_DC+/-
MDI[3]+/- B1_DD+/- GBE MDI Runtime Twisted pair signals for external
transformer.
GBE1_LINK100# S19 Link Speed Indication LED for GBE 1 100Mbps O OD
CMOS 3.3V Runtime Shall be able to sink 24mA or more Carrier
LED current
GBE1_LINK1000# S22 Link Speed Indication LED for GBE 1 1000Mbps O OD
CMOS 3.3V Runtime Shall be able to sink 24mA or more Carrier
LED current
GBE1_LINK_ACT# S31 Link / Activity Indication LED Driven low on Link (10, 100
or 1000 mbps) Blinks on Activity O OD
CMOS 3.3V Runtime Shall be able to sink 24mA or more Carrier
LED current
GBE1_CTREF S28 Center-Tap reference voltage for Carrier board Ethernet
magnetic `(if required by the Module GBE PHY)` Analog 0 to 3.3V
max Runtime
GBE1_SDP P5 IEEE 1588 Trigger Signal. For hardware implementation
of PTP (precision time protocol) IO
CMOS 3.3V Runtime