FLEX-IMX8M-Mini HARDWARE MANUAL
– VER 1.00 – JAN 31 2020
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27
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5. FLEX-IMX8M-Mini External Interfaces
5.1. Ethernet
The FLEX-IMX8M-Mini provides a 10/100/1000-Mbit/s MAC ethernet interface which, implements
layer 3 network acceleration functions. These functions are designed to accelerate the processing of
various common networking protocols, such as IP, TCP, UDP, and ICMP, providing wire speed
services to client applications.
The Ethernet interface provides following features.
•
Triple speed 10/100/1000 Mbit/s Ethernet MAC compliant with the IEEE802.3-2002
standard.
•
The MAC layer provides compatibility with half- or full-duplex 10/100 Mbit/s Ethernet LANs
and full-duplex gigabit Ethernet LANs.
For additional details, please refer to the “Ethernet MAC (ENET)” chapter of the “i.MX8M Mini
Applications Processor
Reference Manual”.
Table 10 - Ethernet Signal Description
PIN
IC Pin
Signal
V
I/O
Description
12
AR8035 pin 9
G
2V5
I/O
Gigabit Ethernet Media
Dependent Interface (MDI)
differential pair 0 positive signal
13
AR8035 pin 15
G
2V5
I/O
Gigabit Ethernet Media
Dependent Interface (MDI)
differential pair 2 positive signal
14
AR8035 pin 10
GBE_MDI0-
2V5
I/O
Gigabit Ethernet Media
Dependent Interface (MDI)
differential pair 0 negative signal
15
AR8035 pin 16
GBE_MDI2-
2V5
I/O
Gigabit Ethernet Media
Dependent Interface (MDI)
differential pair 2 negative signal
18
AR8035 pin 12
G
2V5
I/O
Gigabit Ethernet Media
Dependent Interface (MDI)
differential pair 1 positive signal
19
AR8035 pin 18
G
2V5
I/O
Gigabit Ethernet Media
Dependent Interface (MDI)
differential pair 3 positive signal
20
AR8035 pin 13
GBE_MDI1-
2V5
I/O
Gigabit Ethernet Media
Dependent Interface (MDI)
differential pair 1 negative signal
21
AR8035 pin 19
GBE_MDI3-
2V5
I/O
Gigabit Ethernet Media
Dependent Interface (MDI)
differential pair 3 negative signal
24
AR8035 pin 24
LED1_nLink100
2V5
O
Gigabit Ethernet 100Mbit/sec
LED link indicator
25
AR8035 pin 21
LED1_ACT
2V5
O
Gigabit Ethernet LED Activity
indicator
26
AR8035 pin 22
LED1_nLink1000
2V5
O
Gigabit Ethernet 1000Mbit/sec
LED link indicator
27
AR8035 pin 21
LED1_ACT_GND
GND
O
Gigabit Ethernet LED Activity
indicator Ground Pin