MicroSys Electronics miriac SBC-LS1043A2, Руководство пользователя

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Peripherals 6
miriac SBC-LS1043A2 User Manual V 2.2 37/72
© MicroSys Electronics GmbH 2017
The LAN Sockets have a standard layout for GBit Ethernet, i.e. the pairs are 1-2, 3-
6, 4-5 and 7-8.
Pin Pair
1 D-A+
2 D-A-
3 D-B+
4 D-C+
5 D-C-
6 D-B-
7 D-D+
8 D-D-
Table 6-3 LAN Gigabit Ethernet connector pairs
6.3.1 Port 1
Port 1 is connected to a standard RJ-
45 socket “LAN1”. It uses the SerDes Lanes 1
provided by the LS1043A CPU configured as SGMII port. The SGMII lanes connect
to a Marvell PHY 88E1512P which uses a copy of the reference voltage on pin T80
of the module connector ST4 as I/O voltage (1.8V).
88E1512P ST4 LS1043A
Pin Name Pin Signal Pin Name
1 S_INP
←
T41 SRD-TX1+
←
AD6 SD1-TX0
2 S_INN
←
T42 SRD-TX1-
←
AE6 SD1-TX0#
4 S_OUTP
→
T38 SRD-RX1+
→
AG6 SD1-RX0
5 S_OUTN
→
T39 SRD-RX1-
→
AH6 SD1-RX0#
Table 6-4 SerDes 1 pin assignment
6.3.2 Port 2
Port 2 is not connected on the SBC-LS1043A2 system.
6.3.3 Port 3
Port 3 is connected to a standard RJ-
45 socket “LAN2”. It uses the SerDes Lanes 3
provided by the LS1043A CPU configured as SGMII port. The SGMII lanes connect
to a Marvell PHY 88E1512P which uses a copy of the reference voltage on pin T80
of the module connector ST4 as I/O voltage (1.8V).
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