Peripherals 6
miriac SBC-LS1046A-TSN_User Manual
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© MicroSys Electronics GmbH 20178
In case of QSGMII (LS1088) the system offers 4 ports 10/100/1000 Mbit. Connect
to:
LAN5-A, LAN5-B, LAN6-A, LAN6-B
In case of SGMII the system offers only 1 port 10/100/1000 Mbit. Connect to:
LAN5-A
As Marvell PHY 88E1548P is using different connection pins for QSGMII and
SGMII there is a multiplexer CBTL04083ABS (J20) to switch between connection
groups. The multiplexer is controlled by GPIO
0 = QSGMII
1 = SGMII
CBTL04083ABS
ST4
LS1046A
Pin
Name
Pin
Signal
Pin
Name
9
SRD2-SQ
←
B116
SRD2-SQ
←
D17
GPIO2_14
6.4.4 SRD3 (QSGMII / SGMII)
Port 3 is connected to standard RJ-45 sockets
“LAN7, LAN8”. It uses the SerDes
Lanes 3 provided by the LS1046A CPU configured as QSGMII or SGMII port. The
serdes lanes connect to a Marvell PHY 88E1548P.
88E1548P
M
U
X
ST4
LS1046A
Pin
Name
Pin
Signal
Pin
Name
B1
SRD3-TXS+
0
←
T41
SRD-TX3+
←
AD10
SD1-TX1
B9
SRD3-TXQ+
1
A1
SRD3-TXS-
0
←
T42
SRD-TX3-
←
AE10
SD1-TX1#
A9
SRD3-TXQ-
1
B2
SRD3-RXS+
0
→
T38
SRD-RX3+
→
AG10
SD1-RX1
A8
SRD3-RXQ+
1
A2
SRD3-RXS-
0
→
T39
SRD-RX3-
→
AH10
SD1-RX1#
B8
SRD3-RXQ-
1
Table 6-7 SerDes 3 pin assignment
In case of QSGMII the system offers 4 ports 10/100/1000 Mbit. Connect to:
LAN7-A, LAN7-B, LAN8-A, LAN8-B
In case of SGMII the system offers only 1 port 10/100/1000 Mbit. Connect to:
LAN7-A
