ADLINK Technology SMARC MODULE LEC-EL, Product Specification

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ADLINK Technology Inc. LEC-EL Product specification
Page 6 copyright © 2021 ADLINK Technology Inc.
4.3.8.2 Second LAN port
The second LAN port is derived from the SOCs RGMII interface
Name Pin # Description I/O
Type I/O
Level Power
Domain PU / PD Comments
GB
GBE0_MDI0-
GB
GBE0_MDI1-
GB
GBE0_MDI2-
GB
GBE0_MDI3- P30
P29
P27
P26
P24
P23
P20
P19 Differential Pair Signals for External Transformer
Carrier Series Termination: Magnetics Module
appropriate for 10/100/1000 GBE transceivers
Carrier Parallel Termination:
Secondary side center tap terminations appropriate
for Gigabit Ethernet implementations I/IO GBE
MDI Standby Gigabit Ethernet Controller 0: 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+/-
GBE0_LINK100# P21 Link Speed Indication LED for GBE0 100Mbps O OD
CMOS 3.3V Standby Shall be able to sink 24mA or more Carrier LED current 1
GBE0_LINK1000# P22 Link Speed Indication LED for GBE0 1000Mbps O OD
CMOS 3.3V Standby Shall be able to sink 24mA or more Carrier LED current 1
GBE0_LINK_ACT# P25 Link / Activity Indication LED Driven low on Link (10,
100 or 1000 mbps) Blinks on Activity O OD
CMOS 3.3V Standby Shall be able to sink 24mA or more Carrier LED current
1
GBE0_CTREF P28 Center-Tap reference voltage for Carrier board
Ethernet magnetic (if required by the Module GBE
PHY) Analog 0 to
3.3V max Standby
GBE0_SDP P6 IEEE 1588 Trigger Signal. For hardware
implementation of PTP (precision time protocol) IO
CMOS 3.3V Standby
Note : Both LAN interfaces uses a GPY 2.5Gb Ethernet PHY, there is also a 1Gb pin-compatible part